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Dalea neomexicana var. longipila
Dalea neomexicana (A. Gray) Cory var. longipila (Rydb.) Barneby
Downy Prairie Clover
Fabaceae (Pea family)
Synonym(s): Dalea longipila
USDA Symbol: DANEL
USDA Native Status: L48 (N)
"Low, tufted or matted, precociously flowering perennial herbs with decumbent stems up to 2 dm long from slender yellow roots, soft gray-villous foliage, and ovoid-oblong heads of lustrously plumose, nodding calyces. The inconspicuous flowers are curiously colored: banner whitish, with gland-sprinkled eye at first greenish fading purple; wings white, sometimes blotched with purple; keel tipped with dull crimson." (bibref: 1812).
"In almost all respects like D. n. var. neo-mexicana, but readily recognized in practice by the plane, obovate, emarginate but not widely notched leaflets charged on the back with smaller glands." (bibref: 1812).
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Plant Characteristics
Duration: PerennialHabit: Herb
Leaf Arrangement: Alternate
Fruit Type: Legume
Size Notes: "Stems (2) 3-35 cm long." (bibref: 1812).
Leaf: "Leaf-spurs 0.4-1.5 mm long; stipules thinly herbaceous becoming stramineous, narrowly triangular-subulate to lance-acuminate, 0.6-1.8 (2.4) mm long, pilosulous and often gland-pustulate dorsally; post-petiolular glands prominent, livid or orange, often scattered on the rachis (not exactly behind the petiolule); leaves at least shortly petioled, 0.8-4.5 cm long, with narrowly margined rachis and (3) 4-7 pairs... leaflets 2.5-8 mm long... obovate, obtuse or scarcely emarginate at apex with plane margins and smaller glands on the back." (bibref: 1812).
Flower: "Peduncles 0.3-3.5 cm long; calyx mostly 6.6-8 mm long, the tube 2.4-3.1 mm, the teeth (3.4) 3.8-5.2 (5.7) mm long; petals usually whitish variegated with dull crumson, rarely yellowish/" (bibref: 1812). "Peduncles slender, incurved-ascending, 3-40 mm long, bringing the raceme to vertical or almost so; racemes moderately dense, ovoid becoming oblong, the flowers ascending in bud, early spreading, at least the lowest nodding in age, at full anthesis (pressed) 1.3-1.6 (1.8) cm diam, the pilosulous axis 1-6 cm long; bracts early deciduous, lance-acuminate or -caudate, (3) 3.5-6 mm long, thinly herbaceous becoming papery, greenish or commonly livid-purpurascent, dorsally pilosulous and glandular; pedicels 0.3-0.6 (0.7) mm long, subtended by and charged near apex with a pair of prickle-shaped or mammiform, livid or nigrescent glands 0.2-0.7 mm long; calyx 4.7-8 (8.8) mm long, densely pilose with fine spreading spiral hairs up to (1.2) 1.5-2.2 (2.6) mm long, the tube 2.1-3.1 mm long, the ribs firm but slender, the hyaline intervals charged vrith 1 (sometimes irregular) row of 5-7 (9) small, often orange, sometimes transparent glands, the teeth aristiform from a deltate or broadly triangular base, 2.5-5.7 mm long, in age plumose; petals usually bicolored, the eye of the whitish (yellowish) banner green turning, like the keel-blades, dull crimson, the rest varying from whitish to pale straw-yellow and variably pinkish-tipped, none gland-tipped but all charged near base with a few small glands, the wings perched below middle of androecium and disjointing from it, the keel-claws continuous from hypanthium but adnate nearly to middle of androecial tube, marcescent; banner 4-5.6 mm long, the claw 1.4-2.6 mm, the deltate, acute or subacute, rarely minutely emarginate, basally cordate sagittate blade (2.8) 3-3.7 mm long, 2.3-3.4 mm wide; wings (measured from joint) 3.3-4.2 mm long, the claw 0.7-1.2 (1.5) mm, the obliquely ovate blade broadest near middle, narrowed but obtuse distally, 2.4-3.3 mm long, 1.3-1.8 mm wide; keel (measured from hypanthium rim) 4.5-7.1 (7.5) mm long, the claws (half adnate) 2-4.2 mm long, the obliquely obovate, puckered blades 2.4-3.2 mm long, 1.8-2.2 (3) mm wide; androecium 10-merous, 5-6.7 (7.2) mm long, the longer filaments free for 1.3-2.4 mm, the connective minutely gland-tipped or glandless, the anthers 0.5-0.7 (1) mm long." (bibref: 1812).
Fruit: "Pod 2.3-3 mm long, in profile obliquely obovate, the style-base lateral just below apex, the valves hyaline in lower 1/2-2/3, thence thinly papery, pilose, eglandular, the prow more or less thickened, cordlike, glabrate; seed brown, lustrous, 1.7-2.4 mm long." (bibref: 1812).
Bloom Information
Bloom Color: White , Red , Pink , Yellow , GreenBloom Time: Mar , Apr , May , Jun , Aug , Sep , Oct , Nov
Bloom Notes: "Petals usually bicolored, the eye of the whitish (yellowish) banner green turning, like the keel-blades, dull crimson, the rest varying from whitish to pale straw-yellow and variably pinkish-tipped." (bibref: 1812).
Distribution
USA: TXNative Distribution: "Local and (as known) apparently discontinuous, frequent in southeastern quarter of Coahuila (municipios Parras to Cuatro Cienegas, Monclova, Saltillo) and adjoining northwestern. Nuevo Leon (Sabinas Hidalgo to Monterrey), southward (habitat not recorded) along eastern piedmont of Sierra Madre to central Tamaulipas (Ciudad Victoria); apparently disjunctly on limestone hills along and immediately north of Rio Grande upstream from mouth of Pecos River into eastern Brewster County, Texas, to be expected in northeastern Coahuila.." (bibref: 1812).
Native Habitat: "Stony hillsides and sandy clay knolls in the foothills of desert mountains, sometimes on gypseous shale, most often on hnestone, 340-1800 m (1130-5400 ft)." (bibref: 1812).
Bibliography
Bibref 1812 - Daleae imagines : an illustrated revision of Errazurizia Philippi, Psorothamnus Rydberg, Marina Leibmann, and Dalea Lucanus emend. Barneby, including all species of Leguminosae tribe Amorpheae Borissova ever referred to Dalea (1977) Barneby, Rupert C.Search More Titles in Bibliography
Additional resources
USDA: Find Dalea neomexicana var. longipila in USDA PlantsFNA: Find Dalea neomexicana var. longipila in the Flora of North America (if available)
Google: Search Google for Dalea neomexicana var. longipila
Metadata
Record Modified: 2020-12-07Research By: Joseph A. Marcus