Dalea versicolor var. sessilis |
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oakwoods prairie clover |
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Habit | Shrubs or subshrubs, relatively erect, glabrous or pilosulous. |
Stems | 2–7 dm, eglandular or glandular-verruculose distally. |
Inflorescences | spikes, relatively densely flowered, not involucrate, 12–15 mm diam.; axis usually not visible, 0.5–2 cm; bracts deciduous, (2.5–)3–7.5 mm. |
Peduncles | 0–7(–10) cm. |
Stamens | 10, 7–10.5(–12) mm, filaments distinct to 1.8–3.2 mm, anthers 0.5–0.9 mm. |
Corollas | bicolored, banner cream to pale yellow, reddish in age, epistemonous petals rose-pink to -purple or magenta; papilionaceous; banner (4.8–)5–8.2 mm, blade deltate-cordate, (2.4–)2.8–4.6 × 2–5.2 mm; epistemonous petals attached proximal to middle of stamen tube; wings (3.7–)4–6.5 × 1.7–3.3 mm; keel connate valvately, blades (4–)4.4–7(–7.5) × 2.7–4.2 mm. |
Calyces | somewhat asymmetric, sometimes slightly recessed opposite banner, 5.7–7 mm, densely pilose; tube 2.4–2.8(–3) mm, with 3–6 blister glands between ribs, lobes triangular-aristate, spurred laterally near base, unequal, abaxial longest. |
Legumes | 2.4–2.9 mm, pilosulous and gland-dotted distally. |
Seeds | 1.6–2 mm. |
Principal | leaves 1–4 cm; leaflets 9–19, blades oblanceolate to elliptic or obovate, 1–7.7(–9) mm. |
2n | = 14. |
Dalea versicolor var. sessilis |
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Phenology | Flowering spring, fall. |
Habitat | Rocky slopes, canyons, oak or pine woodlands, desert grasslands. |
Elevation | 900–2100 m. (3000–6900 ft.) |
Distribution |
AZ; NM; Mexico (Chihuahua, Sinaloa, Sonora) |
Discussion | Variety sessilis occurs primarily in the southeastern quarter of Arizona and into southwestern New Mexico. An outlier population occurs in Mohave County in northwestern Arizona. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. |
Parent taxa | |
Synonyms | D. wislizeni var. sessilis |
Name authority | (A. Gray) Barneby: Phytologia 26: 1. (1973) |
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