Special Collections
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.Printer Friendly: Species List | List with Images | List with QR Tags to Mobile
| scientific name | common name(s) | image gallery |
| Ratibida columnifera | Mexican Hat Red-spike Mexican Hat Upright Prairie Coneflower Prairie Coneflower Long-headed Coneflower Thimbleflower | |
| Rhus lanceolata | Prairie Flameleaf Sumac Flameleaf Sumac Prairie Sumac Lance-leaf Sumac Lance-leaved Sumac Texas Sumac Tree Sumac Limestone Sumac Prairie Shining Sumac | |
| Rhynchosia minima | Least Snoutbean | |
| Rhynchosia senna var. texana | Texas Snoutbean Texas Snout-bean | |
| Rhus virens | Evergreen Sumac Tobacco Sumac Lambrisco Lentrisco | |
| Rudbeckia hirta | Black-eyed Susan Common Black-eyed Susan Brown-eyed Susan Blackeyed Susan | |
| Ruellia nudiflora | Violet Ruellia Common Wild Petunia Violet Wild Petunia Wild Petunia Hierba De La Calentura | |
| Rubus trivialis | Southern Dewberry Dewberry | |
| Salvia farinacea | Mealy Blue Sage Mealy Sage Mealycup Sage | |
| Sabal minor | Dwarf Palmetto Bush Palmetto Palmetto | |
| Salix nigra | Black Willow Gulf Black Willow Swamp Willow Sauz | |
| Salvia roemeriana | Cedar Sage | |
| Sapindus saponaria | Wingleaf Soapberry Soapberry Wild China Tree | |
| Schizachyrium scoparium | Little Bluestem Popotillo Azul | |
| Scutellaria wrightii | Wright's Skullcap Bushy Skullcap Shrubby Skullcap | |
| Senna roemeriana | Twoleaf Senna Two Leaved Senna | |
| Silene antirrhina | Sleepy Silene Sleepy Catchfly | |
| Sideroxylon lanuginosum | Gum Bumelia Gum Bully Woollybucket Bumelia Woolly Bumelia Gum Woollybucket Woolly Buckthorn Chittamwood Shittamwood Gum Elastic Coma Black Haw | |
| Smilax bona-nox | Sawbriar Saw Greenbriar Catbriar Bullbriar Stretchberry Vine | |
| Solanum elaeagnifolium | Silverleaf Nightshade Silver-leaf Nightshade White Horse Nettle Trompillo Tomato Weed Bull Nettle | |
| Sophora secundiflora | Texas Mountain Laurel Mountain Laurel Mescal Bean Mescal Bean Sophora Frijolillo Frijolito | |
| Spermolepis inermis | Red River Scaleseed Spreading Scaleseed | |
| Styphnolobium affine | Eve's Necklace Eve's Necklacepod Texas Sophora Pink Sophora Necklace Tree | |
| Taxodium distichum | Bald Cypress Baldcypress Common Bald Cypress Southern Bald Cypress Deciduous Cypress Southern Cypress Swamp Cypress Red Cypress White Cypress Yellow Cypress Gulf Cypress Tidewater Red Cypress | |
| Teucrium canadense | American Germander Canada Germander Canadian Germander Germander Hairy Germander Wood Sage | |
| Tillandsia recurvata | Small Ball Moss Ball Moss | |
| Toxicodendron radicans | Eastern Poison Ivy Poison Ivy | |
| Tridens flavus | Purpletop Tridens Redtop Tridens Tall Redtop Tridens Purpletop Redtop Tall Redtop | |
| Tradescantia occidentalis | Prairie Spiderwort Western Spiderwort Spiderwort | |
| Typha latifolia | Broadleaf Cattail Common Cattail | |
| Ulmus americana | American Elm White Elm Soft Elm Water Elm Common Elm | |
| Ulmus crassifolia | Cedar Elm Fall Elm Basket Elm Scrub Elm Lime Elm Texas Elm Southern Rock Elm Olmo | |
| Ungnadia speciosa | Mexican Buckeye Monilla | |
| Verbesina virginica | Frostweed White Crownbeard Iceplant Iceweed Virginia Crownbeard Indian Tobacco Richweed Squawweed | |
| Verbena xutha | Gulf Vervain | |
| Vitis mustangensis | Mustang Grape | |
| Viburnum rufidulum | Rusty Blackhaw Viburnum Rusty Blackhaw Southern Blackhaw Blackhaw Bluehaw Downy Viburnum Southern Nannyberry Rusty Nannyberry Nannyberry | |
| Yucca rupicola | Twistleaf Yucca Twisted-leaf Yucca Texas Yucca Spanish Dagger | |
| scientific name | common name(s) | image gallery |
