Jacob's Well Natural Area

Jacob's Well is one of the most significant natural geologic treasures in the Texas Hill Country. It is one of the longest underwater caves in Texas and an artesian spring. Jacob’s Well surges up thousands of gallons of water per minute and acts as headwaters to the beautiful Cypress Creek that flows through Wimberley, sustaining Blue Hole and the Blanco River, recharging the Edwards Aquifer, and finally replenishing estuaries in the Gulf of Mexico.


QR Tag Name Characteristics

Abutilon fruticosum
Indian mallow, Texas Indian mallow

Duration: Perennial
Habit: Herb
Light: Sun
Water: Dry

Acalypha ostryifolia
Pineland threeseed mercury, Hop-hornbeam copperleaf

Duration: Annual
Habit: Herb
Light: Sun
Water: Moist, Dry

Acalypha phleoides
Shrubby copperleaf, Three-seeded mercury

Duration: Perennial
Habit: Herb
Light: Part-shade
Water:

Acer negundo
Ash-leaf maple, Ash-leaved maple, Box elder, Boxelder, Fresno de guajuco

Duration: Perennial
Habit: Tree
Light: Sun
Water: Moist

Aesculus glabra var. arguta
Ohio buckeye, White buckeye, Texas buckeye

Duration: Perennial
Habit: Tree
Light: Part-shade
Water: Wet, Moist

Aesculus pavia
Scarlet Buckeye, Red buckeye, Firecracker plant

Duration: Perennial
Habit: Shrub, Tree
Light: Part-shade
Water: Moist

Allium canadense
Meadow garlic, Wild garlic, Wild onion

Duration: Perennial
Habit: Grass/Grass-like
Light: Sun
Water: Moist

Amorpha fruticosa
Indigo bush, False indigo bush, False indigo, Desert false indigo

Duration: Perennial
Habit: Shrub
Light: Sun, Part-shade
Water: Moist

Andropogon glomeratus
Bushy bluestem, Brushy bluestem

Duration: Perennial
Habit: Grass/Grass-like
Light: Sun
Water: Wet, Moist

Argemone albiflora
Bluestem pricklypoppy, White pricklypoppy

Duration: Annual
Habit: Herb
Light: Part-shade
Water: Dry

Aristida purpurea
Purple threeawn, Purple 3-awn, Purple three-awn, Red threeawn

Duration: Annual
Habit: Grass/Grass-like
Light: Sun
Water: Dry

Asclepias asperula
Spider milkweed, Antelope horns, Green-flowered milkweed, Spider antelope-horns

Duration: Perennial
Habit: Herb
Light: Sun
Water: Moist, Dry

Baccharis neglecta
False Willow, Jara dulce, Poverty Weed, Roosevelt Weed

Duration: Perennial
Habit: Shrub
Light: Part-shade
Water: Dry

Bothriochloa laguroides
Silver Bluestem, Silver beardgrass

Duration: Perennial
Habit: Grass/Grass-like
Light:
Water:

Bouteloua curtipendula
Sideoats grama

Duration: Perennial
Habit: Grass/Grass-like
Light: Sun, Part-shade
Water: Moist, Dry

Bouteloua rigidiseta
Texas grama

Duration: Perennial
Habit: Grass/Grass-like
Light: Sun
Water: Dry

Buddleja racemosa
Wand butterfly-bush, Wand butterflybush

Duration: Perennial
Habit: Shrub
Light:
Water:

Callicarpa americana
American beautyberry, French mulberry

Duration: Perennial
Habit: Shrub
Light: Part-shade
Water: Moist

Callirhoe involucrata
Winecup, Purple poppy mallow

Duration: Perennial
Habit: Herb
Light: Sun, Part-shade
Water: Moist, Dry

Calyptocarpus vialis
Straggler daisy, Horseherb, Hierba del caballo, Lawnflower

Duration: Perennial
Habit: Herb
Light: Sun, Shade, Part-shade
Water: Moist, Dry

Carex blanda
Eastern woodland sedge, Creek sedge, Common wood sedge

Duration: Perennial
Habit: Grass/Grass-like
Light: Sun, Shade, Part-shade
Water: Moist, Dry

Carex planostachys
Cedar sedge

Duration: Perennial
Habit: Grass/Grass-like
Light: Part-shade
Water: Dry

Carya illinoinensis
Pecan

Duration: Perennial
Habit: Tree
Light: Sun
Water: Moist

Celtis laevigata
Sugar hackberry, Hackberry, Sugarberry, Texas sugarberry, Palo blanco

Duration: Perennial
Habit: Tree
Light: Part-shade
Water: Dry

Centaurium texense
Lady Bird's centaury

Duration: Annual
Habit: Herb
Light: Sun, Part-shade
Water:

Cephalanthus occidentalis
Common buttonbush, Buttonbush, Button willow

Duration: Perennial
Habit: Shrub
Light: Shade, Part-shade
Water: Wet, Moist

Cercis canadensis var. texensis
Texas redbud

Duration: Perennial
Habit: Tree
Light: Sun, Part-shade
Water: Dry

Chaetopappa asteroides
Arkansas leastdaisy, Least daisy

Duration: Annual
Habit: Herb
Light:
Water:

Chaptalia nutans
Heal and draw, Silverpuff, Lechuguilla

Duration: Perennial
Habit: Herb
Light: Shade
Water:

Chasmanthium latifolium
Inland sea oats, Indian wood oats, Wild oats, River oats, Flathead oats, Upland Oats, Upland Sea Oats

Duration: Perennial
Habit: Grass/Grass-like
Light: Shade, Part-shade
Water: Moist

Cirsium texanum
Texas thistle

Duration: Biennial
Habit: Herb
Light: Sun
Water: Dry

Cissus trifoliata
Grape ivy, Possum grape, Cow-itch vine, Sorrelvine, Arizona grape ivy

Duration: Perennial
Habit: Vine
Light: Part-shade
Water:

Clematis drummondii
Old-man's-beard, Drummond's Clematis, Texas Virgin's Bower, Goat's-Beard

Duration: Perennial
Habit: Vine
Light: Sun, Part-shade
Water: Moist, Dry

Clematis texensis
Scarlet clematis, Scarlet leatherflower, Texas clematis

Duration: Perennial
Habit: Vine
Light: Part-shade
Water: Moist

Cocculus carolinus
Carolina snailseed, Carolina coralbead, Carolina moonseed, Red berried moonseed, Carolina red berried moonseed

Duration: Perennial
Habit: Vine
Light: Part-shade
Water: Moist

Cooperia pedunculata
Prairie lily, Rain lily, Hill Country rain lily

Duration: Perennial
Habit: Herb
Light: Sun
Water: Moist

Coreopsis lanceolata
Lanceleaf coreopsis, Lanceleaf tickseed, Lance-leaved coreopsis, Sand coreopsis

Duration: Perennial
Habit: Herb
Light: Sun, Shade, Part-shade
Water: Dry

Coreopsis tinctoria
Plains coreopsis, Golden tickseed, Goldenwave, Calliopsis

Duration: Annual
Habit: Herb
Light: Sun, Part-shade
Water: Moist

Cornus drummondii
Roughleaf dogwood, Drummond's dogwood, Rough-leaf dogwood

Duration: Perennial
Habit: Tree
Light: Shade, Part-shade
Water: Moist, Dry

Croton fruticulosus
Bush croton, Encinilla, Hierba Loca

Duration: Perennial
Habit: Herb
Light: Part-shade
Water: Dry

Croton monanthogynus
Prairie tea, One-seed Croton

Duration: Annual
Habit: Herb
Light: Sun
Water: Moist, Dry

Dasylirion texanum
Texas sotol, Sotol

Duration: Perennial
Habit: Grass/Grass-like
Light: Sun
Water: Dry

Diospyros texana
Texas persimmon, Mexican persimmon, Black persimmon, Chapote, Chapote prieto

Duration: Perennial
Habit: Tree
Light: Sun, Part-shade
Water: Dry

Diospyros virginiana
Common persimmon, Eastern persimmon

Duration: Perennial
Habit: Tree
Light: Part-shade
Water: Dry

Elymus virginicus
Virginia wildrye, Virginia wild rye

Duration: Perennial
Habit: Grass/Grass-like
Light: Part-shade
Water: Moist

Eragrostis intermedia
Plains lovegrass, Plains Lovegrass

Duration: Perennial
Habit: Grass/Grass-like
Light: Part-shade
Water: Dry

Erioneuron pilosum
Hairy Woollygrass, Hairy Tridens

Duration: Perennial
Habit: Grass/Grass-like
Light: Sun
Water: Dry

Erodium texanum
Fillaree, Pine needle, Stork's Bill, Texas stork's bill, Texas stork's bill

Duration:
Habit: Herb
Light: Sun
Water: Dry

Euphorbia cyathophora
Wild Poinsettia, Poinsettia, Fire on the Mountain

Duration: Annual
Habit: Herb
Light: Sun
Water: Moist

Euphorbia dentata
Toothed spurge, Toothedleaf poinsettia

Duration: Annual
Habit: Herb
Light:
Water:

Euphorbia marginata
Snow on the mountain, Snow-on-the-mountain

Duration: Annual
Habit: Herb
Light: Part-shade
Water: Moist

Evolvulus sericeus
Silver dwarf morning-glory, White Evolvulus

Duration: Perennial
Habit: Herb
Light: Sun
Water: Dry

Eysenhardtia texana
Texas kidneywood, Kidneywood, Bee-Brush, Vara dulce

Duration: Perennial
Habit: Shrub
Light: Sun
Water: Dry

Forestiera pubescens
Stretchberry, Elbow bush, Spring herald

Duration: Perennial
Habit: Shrub
Light: Sun, Shade, Part-shade
Water: Moist, Dry

Frangula caroliniana
Carolina buckthorn, Carolina false buckthorn, Indian cherry

Duration: Perennial
Habit: Tree
Light: Part-shade
Water: Moist

Fraxinus pennsylvanica
Green ash, Red ash

Duration: Perennial
Habit: Tree
Light: Sun, Shade, Part-shade
Water: Wet, Moist, Dry

Gaillardia pulchella
Firewheel, Indian Blanket

Duration: Annual
Habit: Herb
Light: Sun, Part-shade
Water: Dry

Galium texense
Texas bedstraw

Duration: Annual
Habit: Herb
Light:
Water:

Geum canadense
White avens

Duration: Perennial
Habit: Herb
Light: Shade, Part-shade
Water: Moist, Dry

Glandularia bipinnatifida
Purple prairie verbena, Prairie verbena, Dakota vervain, Dakota mock vervain, Moradilla

Duration: Perennial
Habit: Herb, Subshrub
Light: Part-shade
Water: Moist, Dry

Ilex decidua
Possumhaw, Possumhaw Holly, Deciduous Holly, Winterberry, Deciduous yaupon

Duration: Perennial
Habit: Shrub
Light: Sun, Part-shade
Water: Moist

Ilex vomitoria
Yaupon, Yaupon Holly, Cassina

Duration: Perennial
Habit: Shrub, Tree
Light: Sun, Shade, Part-shade
Water: Moist, Dry

Ipomopsis rubra
Standing cypress, Texas plume, Red Texas star, Red gilia

Duration: Biennial
Habit: Herb
Light: Sun, Part-shade
Water: Dry

Iva angustifolia
Narrowleaf marshelder, Narrow-leaf Sumpweed

Duration: Annual
Habit: Herb
Light:
Water:

Juglans microcarpa
Little walnut, Nogalito, Texas walnut, Texas black walnut, River walnut

Duration: Perennial
Habit: Tree
Light: Part-shade
Water: Dry

Juniperus ashei
Ashe juniper, Ashe's juniper, Mountain cedar, Blueberry juniper

Duration: Perennial
Habit: Tree
Light: Part-shade
Water: Dry

Justicia americana
American water-willow, Water-willow

Duration: Perennial
Habit: Herb
Light: Sun, Part-shade
Water: Wet, Moist

Ludwigia repens
Creeping primrose-willow, Floating primrose-willow, Water primrose

Duration: Perennial
Habit: Herb
Light:
Water:

Lupinus texensis
Texas bluebonnet, Bluebonnet, Texas lupine, Buffalo clover, Wolf-flower

Duration: Annual
Habit: Herb
Light: Sun
Water: Dry

Mahonia swaseyi
Texas barberry, Texas Oregon-grape

Duration: Perennial
Habit: Shrub
Light: Sun
Water:

Mahonia trifoliolata
Agarita, Agarito, Algerita, Laredo mahonia, Laredo Oregon-grape, Trifoliate barberry

Duration: Perennial
Habit: Shrub
Light: Sun, Part-shade
Water: Moist, Dry

Malvaviscus arboreus
Turkscap, Wax mallow, Bleeding hearts, Mexican apple, Manzanilla

Duration: Perennial
Habit: Shrub
Light:
Water:

Matelea reticulata
Green milkweed vine, Net vein milkvine, Netted milkvine, Pearl milkweed Vine

Duration: Perennial
Habit: Vine
Light: Part-shade
Water: Dry

Maurandella antirrhiniflora
Snapdragon Vine, Roving sailor, Climbing snapdragon, Little snapdragon vine

Duration: Perennial
Habit: Vine
Light: Part-shade
Water: Dry

Melampodium leucanthum
Blackfoot Daisy, Rock daisy, Plains blackfoot

Duration: Perennial
Habit: Herb
Light: Sun, Part-shade
Water: Dry

Mimosa borealis
Fragrant mimosa, Pink Mimosa

Duration: Perennial
Habit: Shrub
Light: Sun, Part-shade
Water: Dry

Morus rubra
Red mulberry, Moral

Duration: Perennial
Habit: Tree
Light: Sun, Shade, Part-shade
Water: Moist, Dry

Nassella leucotricha
Texas wintergrass, Texas Speargrass, Wintergrass

Duration: Perennial
Habit: Grass/Grass-like
Light: Sun
Water:

Oenothera speciosa
Pink evening primrose, Showy evening primrose, Mexican evening primrose, Showy primrose, Pink ladies, Buttercups, Pink buttercups

Duration: Perennial
Habit: Herb
Light: Sun
Water: Moist, Dry

Opuntia engelmannii
Cactus apple

Duration: Perennial
Habit: Cactus/Succulent
Light: Sun
Water: Dry

Opuntia macrorhiza
Common prickly-pear, Plains prickly pear, Prickly Pear, Twist-spine prickly-pear, Twistspine pricklypear

Duration: Perennial
Habit: Cactus/Succulent
Light: Sun
Water: Dry

Oxalis dillenii
Slender yellow wood sorrel, Yellow wood sorrel

Duration: Perennial
Habit: Herb
Light:
Water:

Panicum virgatum
Switchgrass, Wand panic grass

Duration: Perennial
Habit: Grass/Grass-like
Light: Sun, Part-shade
Water: Moist, Dry

Parietaria pensylvanica
Pennsylvania pellitory, Pennsylvania cucumber plant

Duration: Annual
Habit: Herb
Light:
Water:

Parthenocissus heptaphylla
Sevenleaf creeper, Seven-leaf Creeper

Duration: Perennial
Habit: Vine
Light: Sun, Shade, Part-shade
Water: Moist

Parthenocissus quinquefolia
Virginia creeper

Duration: Perennial
Habit: Vine
Light: Sun, Shade, Part-shade
Water: Moist

Passiflora lutea
Yellow passion vine, Yellow passion-flower, Yellow passionflower

Duration: Perennial
Habit: Herb
Light: Part-shade
Water: Moist

Phacelia congesta
Blue curls, Caterpillars, Fiddleneck

Duration: Annual, Biennial
Habit: Herb
Light: Sun, Part-shade
Water: Dry

Phyla nodiflora
Texas frogfruit, Turkey tangle fogfruit, Frogfruit

Duration: Perennial
Habit: Herb
Light: Sun, Part-shade
Water: Moist, Dry

Phyllanthus polygonoides
Smartweed leaf-flower

Duration: Perennial
Habit: Subshrub
Light:
Water:

Physalis cinerascens
Smallflower groundcherry

Duration: Perennial
Habit: Herb
Light:
Water:

Platanus occidentalis
American sycamore, Buttonwood, Plane-tree, Sycamore

Duration: Perennial
Habit: Tree
Light: Sun, Shade, Part-shade
Water: Moist

Prosopis glandulosa
Honey mesquite

Duration: Perennial
Habit: Tree
Light: Sun
Water: Dry

Prunus mexicana
Mexican plum, Bigtree plum

Duration: Perennial
Habit: Tree
Light: Sun, Part-shade
Water: Moist, Dry

Ptelea trifoliata
Wafer ash, Common hoptree, Hop tree

Duration: Perennial
Habit: Tree
Light: Sun, Shade, Part-shade
Water: Wet, Moist, Dry

Pyrrhopappus pauciflorus
Smallflower desert-chicory, Texas dandelion, False dandelion

Duration: Annual
Habit: Herb
Light: Sun, Part-shade
Water: Moist, Dry

Quercus buckleyi
Texas red oak, Buckley oak, Spanish oak, Spotted Oak, Rock Oak

Duration: Perennial
Habit: Tree
Light: Sun, Part-shade
Water: Dry

Quercus fusiformis
Escarpment live oak, Plateau live oak, Texas live oak, Scrub live oak, Hill country live oak, Plateau oak

Duration: Perennial
Habit: Tree
Light: Sun, Part-shade
Water: Dry

Quercus marilandica
Blackjack oak, Barren oak, Black oak, Jack oak

Duration: Perennial
Habit: Tree
Light: Part-shade
Water: Dry

Quercus sinuata
Bastard oak, Durand oak

Duration: Perennial
Habit: Tree
Light: Sun
Water: Dry

Ratibida columnifera
Mexican hat, Prairie coneflower, Upright prairie coneflower, Red-spike mexican-hat, Long-headed coneflower, Thimbleflower

Duration: Perennial
Habit: Herb
Light: Sun
Water: Moist, Dry

Rhus lanceolata
Prairie flameleaf sumac, Flame-leaf sumac, Prairie sumac, Lance-leaf sumac

Duration: Perennial
Habit: Tree
Light: Sun
Water: Dry

Rhus virens
Evergreen sumac, Tobacco sumac

Duration: Perennial
Habit: Shrub
Light: Sun, Part-shade
Water: Dry

Rhynchosia minima
Least snoutbean

Duration: Perennial
Habit: Vine
Light:
Water:

Rhynchosia senna var. texana
Texas Snout-bean, Texas snoutbean

Duration: Perennial
Habit: Vine
Light:
Water:

Rubus trivialis
Dewberry, Southern dewberry

Duration: Perennial
Habit: Herb
Light: Sun, Part-shade
Water: Moist, Dry

Rudbeckia hirta
Black-eyed Susan, Common black-eyed Susan, Brown-eyed Susan

Duration: Annual
Habit: Herb
Light: Sun, Shade, Part-shade
Water: Moist, Dry

Ruellia nudiflora
Violet ruellia, Common wild petunia, Violet wild petunia, Wild petunia

Duration: Perennial
Habit: Herb
Light: Sun, Shade, Part-shade
Water: Moist, Dry

Sabal minor
Dwarf palmetto, Palmetto, Bush palmetto

Duration: Perennial
Habit: Shrub
Light: Sun, Shade, Part-shade
Water: Moist, Dry

Salix nigra
Black willow, Gulf black willow

Duration: Perennial
Habit: Tree
Light: Sun, Shade, Part-shade
Water: Wet, Moist

Salvia farinacea
Mealy blue sage, Mealy sage, Mealycup sage

Duration: Perennial
Habit: Herb
Light: Sun
Water: Moist

Salvia roemeriana
Cedar sage

Duration: Perennial
Habit: Herb
Light: Part-shade
Water: Dry

Sapindus saponaria
Wingleaf soapberry, Soapberry, Wild China tree

Duration: Perennial
Habit: Tree
Light:
Water:

Schizachyrium scoparium
Little bluestem

Duration: Perennial
Habit: Grass/Grass-like
Light: Sun, Part-shade
Water: Dry

Scutellaria wrightii
Wright's skullcap, Bushy skullcap, Shrubby skullcap

Duration: Perennial
Habit: Shrub
Light: Sun, Part-shade
Water: Moist, Dry

Senna roemeriana
Twoleaf senna, Two leaved senna

Duration: Perennial
Habit: Shrub
Light: Part-shade
Water: Dry

Sideroxylon lanuginosum
Gum bumelia, Gum bully, Woollybucket bumelia, Chittamwood, Gum elastic, Coma

Duration: Perennial
Habit: Shrub, Tree
Light: Sun, Part-shade
Water: Dry

Silene antirrhina
Sleepy silene, Sleepy catchfly

Duration: Annual
Habit: Herb
Light:
Water:

Smilax bona-nox
Saw greenbrier, Catbrier, Bullbrier

Duration: Perennial
Habit: Vine
Light: Shade
Water: Moist, Dry

Solanum elaeagnifolium
Silverleaf nightshade, Silver-leaf nightshade, White horse nettle, Trompillo, Tomato weed

Duration: Perennial
Habit: Herb
Light: Sun
Water: Dry

Sophora secundiflora
Texas mountain laurel, Mountain laurel, Mescal bean, Mescal bean sophora, Frijolillo, Frijolito

Duration: Perennial
Habit: Shrub, Tree
Light: Sun, Part-shade
Water: Moist, Dry

Spermolepis inermis
Red River scaleseed, Spreading Scaleseed

Duration: Annual
Habit: Herb
Light:
Water:

Styphnolobium affine
Eve's necklace, Eve's necklacepod, Texas sophora

Duration: Perennial
Habit: Tree
Light: Part-shade
Water: Dry

Taxodium distichum
Bald cypress, Baldcypress, Common bald cypress, Southern bald cypress, Deciduous cypress

Duration: Perennial
Habit: Tree
Light: Sun, Part-shade
Water: Moist

Teucrium canadense
Canada germander, American germander, Canadian germander, Germander, Hairy germander, Wood sage

Duration: Perennial
Habit: Herb
Light: Part-shade
Water: Moist

Tillandsia recurvata
Small ball moss, Ball moss

Duration: Perennial
Habit: Herb
Light:
Water:

Toxicodendron radicans
Eastern poison ivy, Poison ivy, Poison oak

Duration: Perennial
Habit: Shrub, Vine
Light: Shade, Part-shade
Water: Moist

Tradescantia occidentalis
Prairie spiderwort, Western Spiderwort, Spiderwort

Duration: Perennial
Habit: Herb
Light: Sun, Part-shade
Water: Dry

Typha latifolia
Broadleaf cattail, Common cat-tail, Broad-leaf cat-tail

Duration: Perennial
Habit: Grass/Grass-like
Light: Sun, Part-shade
Water: Wet

Ulmus americana
American elm, White elm

Duration: Perennial
Habit: Tree
Light: Sun, Part-shade
Water: Moist

Ulmus crassifolia
Cedar elm, Fall elm, Olmo

Duration: Perennial
Habit: Tree
Light: Part-shade
Water: Moist

Ungnadia speciosa
Mexican buckeye

Duration: Perennial
Habit: Tree
Light: Sun, Part-shade
Water: Dry

Verbena xutha
Gulf vervain

Duration: Perennial
Habit: Herb
Light: Sun, Part-shade
Water: Moist, Dry

Verbesina virginica
Frostweed, White crownbeard, Iceplant, Iceweed, Virginia crownbeard, Indian tobacco, Richweed, Squawweed

Duration: Biennial
Habit: Herb
Light: Shade, Part-shade
Water: Moist, Dry

Viburnum rufidulum
Rusty blackhaw viburnum, Rusty blackhaw, Southern blackhaw, Downy viburnum

Duration: Perennial
Habit: Tree
Light: Part-shade
Water: Dry

Vitis mustangensis
Mustang grape

Duration: Perennial
Habit: Vine
Light: Part-shade
Water: Dry

Wedelia texana
Zexmenia, Orange zexmenia, Wedelia, Hairy wedelia, Texas creeping-oxeye

Duration: Perennial
Habit: Herb
Light: Sun, Part-shade
Water: Moist, Dry

Yucca rupicola
Twistleaf yucca, Twisted-leaf yucca, Texas yucca

Duration: Perennial
Habit: Cactus/Succulent
Light: Sun, Part-shade
Water: Dry