Dalea hallii |
Dalea carthagenensis |
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Hall's prairie clover |
Cartagena prairie clover |
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Stems | 1.3–3(–4) dm, eglandular or with scattered small glands. |
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Inflorescences | spikes, relatively loosely flowered, not involucrate, 14–17 mm diam.; axis partially visible, 1–5 cm; bracts deciduous near anthesis, 4–6.5 mm. |
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Peduncles | usually absent, rarely to 1 cm. |
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Stamens | 10, 9.5–11.5 mm, filaments distinct to 2.5–3 mm, anthers (0.7–)0.8–1 mm. |
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Corollas | yellow, rarely brownish in age; papilionaceous; banner 5–6.2 mm, blade deltate-cordate, 2.8–3.3 × 3–3.8 mm; epistemonous petals attached near middle of stamen tube; wings 3.6–5 × 2.2–2.8 mm; keel connate valvately, blades 5.2–6.4 × 3.6–4 mm. |
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Calyces | asymmetric, recessed opposite banner, (5.1–)5.5–7.8 mm, pilosulous to pilose; tube 2.4–3 mm, with 2 or 3 small glands between ribs, lobes lanceolate-aristate. |
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Legumes | 3 mm, distally with 2 rows of ascending hairs on either side of a glabrescent row, eglandular. |
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Seeds | 2.2 mm. |
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Perennial | herbs, decumbent to ascending, strigulose. |
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Principal | leaves 1.5–4.5 cm; leaflets 3, blades linear-elliptic to linear, 8–30(–35) mm. |
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Dalea hallii |
Dalea carthagenensis |
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Phenology | Flowering spring (fall). | |
Habitat | Rocky outcrops in grasslands, usually on limestone. | |
Elevation | 100–600 m. (300–2000 ft.) | |
Distribution |
TX |
Mexico; Central America; South America; Florida; West Indies
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Discussion | Dalea hallii is endemic to central and north-central Texas from the edge of the Edwards Plateau from as far south as Bandera County northward to Fannin County along the Red River. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 9 (1 in the flora). R. C. Barneby (1977c) recognized nine varieties in Dalea carthagenensis, a complex and polymorphic species. The eight varieties found outside the flora area occur in Mexico, West Indies, Central America, and South America. The calyces of D. carthagenensis sometimes have slightly hooked lobes when mature, a feature used to distinguish D. scandens; the two species are allopatric. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Subordinate taxa | ||
Synonyms | Psoralea carthagenensis | |
Name authority | A. Gray: Proc. Amer. Acad. Arts 8: 625. (1873) | (Jacquin) J. F. Macbride: Publ. Field Mus. Nat. Hist., Bot. Ser. 13(3): 375. (1943) — (as carthaginensis) |
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