Dalea jamesii |
Dalea ornata |
|
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James' dalea, James' prairie clover |
Blue Mountain prairie-clover, ornate dalea, western prairie clover |
|
Stems | 0.4–1.7(–2) dm, eglandular. |
(2–)2.5–6(–7) dm, dotted with small, raised glands. |
Inflorescences | spikes, relatively densely flowered, not obviously involucrate, (16–)18–23(–25) mm diam.; axis not to partially visible, 1.5–6.5(–8) cm; bracts deciduous at anthesis, (4–)5–8(–9) mm. |
spikes, densely flowered, not involucrate, 13–16 mm diam.; axis not visible, (1–)1.5–5 cm; bracts deciduous, interfloral ones often held in place by crowded flowers, (3–)4–7.5(–8.5) mm. |
Peduncles | absent or very short. |
1–11 cm. |
Stamens | 10, (9.5–)10–11.7 mm, filaments distinct to 1.7–3 mm, anthers (0.8–)0.9–1.2 mm. |
5, (7.3–)7.7–12 mm, filaments distinct to (3.6–)4.7–7.6 mm, anthers 1–1.4 mm. |
Corollas | clear yellow, orangish brown in age; papilionaceous; banner 5.2–6.2 mm, blade deltate-cordate, 3.2–4.2 × 3.2–4.4 mm, proximal lobes connate, forming obconic pit; epistemonous petals attached proximal to middle of stamen tube; wings 3.9–5.1 × 2.3–3.2 mm; keel connate valvately, blades 5.3–6.3 × 3.2–3.8 mm. |
usually rose-purple to lilac, rarely white; not conventionally papilionaceous; banner 7–9 mm, blade ovate to oblong-ovate, 3.3–4.5 × (2–)2.3–4 mm; epistemonous petals attached at separation of filaments, blades (3.3–)3.5–5 × 1.4–2 mm. |
Calyces | somewhat asymmetric, slightly recessed opposite banner, (8.3–)8.5–12(–13.3) mm, pilose; tube (2.4–)2.8–3.5 mm, with 3 or 4 small glands between ribs, lobes triangular-aristate. |
subsymmetric, (3.6–)3.9–6.3(–6.7) mm, pilose throughout or distally; tube (2.4–)2.7–3.6(–3.8) mm, with 2–9 small glands between ribs, lobes lanceolate to ovate. |
Legumes | 3.5–4 mm, distally with 2 rows of ascending hairs on either side of a glabrescent row, eglandular. |
3–3.5 mm, pilosulous distally and gland-dotted. |
Seeds | 2.3–3 mm. |
2–2.4 mm. |
Perennial | herbs, erect to ascending, silky-pilose to -pilosulous. |
herbs, erect, glabrous proximal to inflorescence. |
Principal | leaves (0.6–)1–3(–4) cm; leaflets 3, blades obovate to broadly oblanceolate, (3–)5–18 mm, surfaces apparently eglandular. |
leaves 2.5–5.5(–6.5) cm; leaflets 5 or 7 (or 9), blades oblanceolate to obovate, 7–22 mm. |
2n | = 14. |
= 14. |
Dalea jamesii |
Dalea ornata |
|
Phenology | Flowering spring–early summer (fall). | Flowering spring–early summer. |
Habitat | Rocky grasslands, deserts, open pine or juniper woodlands. | Rocky, sandy, or clay soils in dry areas, often among sagebrush. |
Elevation | 900–2100 m. (3000–6900 ft.) | 100–2000 m. (300–6600 ft.) |
Distribution |
AZ; CO; KS; NM; OK; TX; Mexico (Chihuahua)
|
CA; ID; NV; OR; WA
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Discussion | Dalea jamesii occurs from far southwestern Kansas to southeastern Arizona. In Texas, the species occurs in the northern panhandle and trans-Pecos regions. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Dalea ornata is nearly endemic to the Columbia-Snake river basin. In California, the species is known only from the Shaffer Mountain region in Lassen County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Psoralea jamesii | Petalostemon ornatus |
Name authority | (Torrey) Torrey & A. Gray: Fl. N. Amer. 1: 308. (1838) | (Douglas) Eaton & Wright: Man. Bot. ed. 8, 219. (1840) — (as ornatum) |
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