Dalea urceolata |
Dalea tenuis |
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pineforest prairie clover |
pinkglobe prairie clover |
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Stems | 1.5–4(–5) dm, sparsely glandular-punctate. |
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Inflorescences | spikes, densely flowered, not involucrate, 7–12 mm diam.; axis not visible, 0.5–2.5 cm; bracts persistent through anthesis, 1.5–4.5 mm. |
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Peduncles | 2.5–18 cm. |
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Stamens | 5, 6–8.5 mm, filaments distinct to 2.5–4.8 mm, anthers 0.8–1 mm. |
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Corollas | pink; not conventionally papilionaceous; banner 4.6–5.8 mm, blade ovate, 2.2–2.5 × 1.5–2.8 mm; epistemonous petals attached at separation of filaments, blades 2.7–3.1 ×1–1.3 mm. |
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Calyces | subsymmetric, 3–5.2 mm, silky-pilosulous, base with subappressed and retrorse hairs; tube 2–3.1 mm, with 0 glands between ribs, lobes subulate or adaxial pair triangular-ovate. |
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Legumes | 3.6 mm, glabrous or apically pilosulous, eglandular. |
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Seeds | apparently unknown. |
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Dalea | urceolata is remarkable for its reduced corolla with two epistemonous petals and is rare throughout most of its range. |
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Perennial | herbs, erect, glabrous or sparsely pilosulous. |
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Principal | leaves 1.5–3.5 cm; leaflets 3 or 5, blades linear, 6–15 mm. |
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Dalea urceolata |
Dalea tenuis |
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Phenology | Flowering late spring–early summer (fall). | |
Habitat | Rocky limestone soils. | |
Elevation | 200–600 m. (700–2000 ft.) | |
Distribution |
sw United States; Mexico |
OK; TX |
Discussion | Varieties 3 (1 in the flora). Variety tripetala (Paul G. Wilson) Barneby occurs in south-central Mexico (Michoacán to Morelos) and has fewer stamens (5–7) than var. urceolata (7–10). Variety lucida (Rose ex Rydberg) Barneby occurs in Durango and lacks the epistemonous petals; the banner is the only petal. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Dalea tenuis is largely a species of central Texas occurring as far east as McLennan County and south to Bandera County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Subordinate taxa | ||
Synonyms | Petalostemon violaceus var. tenuis, P. tenuis | |
Name authority | Greene: Leafl. Bot. Observ. Crit. 1: 199. (1906) | (J. M. Coulter) Shinners: Field & Lab. 17: 84. (1949) |
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