Dalea filiformis |
Dalea lachnostachys |
|
---|---|---|
Sonoran prairie-clover |
glandleaf prairie clover |
|
Stems | (0.4–)0.7–3(–3.5) dm, eglandular. |
1.5–4 dm, black-warty. |
Inflorescences | spikes, relatively densely flowered, not involucrate, 5–7 mm diam.; axis not to partially visible, (0.2–)0.3–1.5(–2) cm; bracts early deciduous, 1.5–2.8 mm. |
racemes, spikelike, relatively densely flowered, not involucrate, (15–)16–19(–20) mm diam.; axis usually not visible, 2.5–5 cm; bracts deciduous, 7–11 mm. |
Peduncles | (1.3–)2–8 cm. |
1–8(–11) cm. |
Stamens | 10, 2.5–3.5 mm, filaments distinct to 0.6–0.9 mm, anthers 0.2–0.3 mm. |
10, 6.6–8.7 mm, filaments distinct to 2.3–2.9 mm, anthers (0.5–)0.6–0.8 mm. |
Corollas | all pinkish or reddish, or banner paler; papilionaceous; banner 2.6–3.5 mm, blade ovate or deltate-ovate, 1.4–1.8 × 0.9–1.6 mm; epistemonous petals attached proximal to middle of stamen tube; wings 1.2–1.8(–2) × 0.8–1.1 mm; keel connate valvately, blades 1.4–1.9 × 0.8–1.1 mm. |
dark blue or blue-violet; papilionaceous; banner 5.7–7.6 mm, blade shallowly cordate, (3.5–)3.8–4.8 × 2.2–3.8 mm; epistemonous petals attached well proximal to middle of stamen tube; wings 3.7–5 × 1.3–1.8 mm; keel connate by overlapping margins, blades (3.8–)4–4.7 × 1.7–2.2 mm. |
Calyces | ± asymmetric, not strongly recessed opposite banner, opening oblique, (2.5–)2.8–3.5 mm, pilosulous; tube (1.3–)2.8–3.5 mm, with 0 or 1(or 2) small glands between ribs, lobes triangular-acuminate or -aristate. |
± symmetric, (4.3–)5.8–7.7 mm, pilose; tube 2.6–3.1 mm, with 3 or 4 small glands between ribs, lobes triangular-aristate. |
Legumes | 2–2.4 mm, pilosulous and, sometimes, gland-dotted distally. |
(3–)3.3–4 mm, pilosulous distally, eglandular. |
Seeds | 1.5–1.9 mm. |
1.8–2.4 mm. |
Annual | herbs, erect, glabrous or glabrate proximal to inflorescences. |
|
Principal | leaves 1–3.5 cm; leaflets 3 or 5, blades linear-filiform, 5–23 mm. |
leaves 3–8(–9.5) cm; leaflets (5 or) 7 or 9 (or 11), blades obovate, (5–)7–17 mm, margins entire or ± crenulate, surfaces glandular-pustulate around margins abaxially. |
Perennial | herbs, erect, ± pilosulous. |
|
2n | = 14. |
= 14. |
Dalea filiformis |
Dalea lachnostachys |
|
Phenology | Flowering late summer–fall (spring). | Flowering late summer–fall. |
Habitat | Open oak, juniper, or pine woodlands, grasslands, rocky soils along roads, disturbed places. | Open deserts, dry grasslands, open woodlands, sometimes on limestone. |
Elevation | 1600–2400 m. (5200–7900 ft.) | 1000–1800 m. (3300–5900 ft.) |
Distribution |
AZ; NM; Mexico (Chihuahua, Durango, Sonora)
|
AZ; NM; TX; Mexico (Chihuahua, Coahuila, Sonora) |
Discussion | Dalea filiformis is distinctive in its relatively few, narrow leaflets. Its range is primarily southeastern and central Arizona and southwestern New Mexico, but it does occur in northern Arizona to nearly the Utah border, and there is one report for northern New Mexico in Sandoval County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Dalea lachnostachys occurs in southern Arizona, southwestern New Mexico, and trans-Pecos Texas. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | Fabaceae > subfam. Faboideae > Dalea | Fabaceae > subfam. Faboideae > Dalea |
Sibling taxa | ||
Name authority | A. Gray: Smithsonian Contr. Knowl. 5(6): 39. (1853) | A. Gray: Smithsonian Contr. Knowl. 3(5): 46. (1852) |
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