Dalea pulchra |
Dalea cylindriceps |
|
---|---|---|
Santa Catalina prairie-clover |
Andean prairie clover |
|
Habit | Shrubs, relatively erect, stiffly-branching, silky- or velvety-pubescent distally. | |
Stems | 5–10 dm, verruculose distally. |
(1–)3–6(–8) dm, dotted with small raised glands distally. |
Inflorescences | spikes, densely flowered, obviously involucrate (proximalmost several whorls of bracts subtending rudimentary buds), 11.5–16 mm diam.; axis not visible, 0.4–0.7 cm; bracts deciduous, interfloral ones sometimes held in place by crowded flowers, 2–6.5 mm. |
spikes, densely flowered, not obviously involucrate, 9–12 mm diam.; axis not visible, (1.5–)2.5–18 cm; bracts early deciduous, interfloral ones often held in place by crowded flowers, 4–6.5 mm. |
Peduncles | 0–1 cm. |
(3–)6–20 cm. |
Stamens | 10, 7.5–9 mm, filaments distinct to 1.8–2.8 mm, anthers 0.6–0.7 mm. |
5, 5.3–7.7 mm, filaments distinct to 2.2–4.3 mm, anthers 0.7–0.9 mm. |
Corollas | bicolored, banner cream, reddish in age, epistemonous petals pink-purple; papilionaceous; banner 6–7.5 mm, blade ovate- or deltate-cordate, 2.8–4.2 × 3.4–4.4 mm; epistemonous petals attached proximal to middle of stamen tube; wings 4.1–5 × 2–2.6 mm; keel connate valvately, blades 5.2–6.8 × 3–3.5 mm. |
whitish, ochroleucous, faintly greenish, or pink; not conventionally papilionaceous; banner 4.7–6.2 mm, blade broadly triangular to ovate-cordate, 1.4–2.7 × 1.6–2.1 mm; epistemonous petals attached at separation of filaments, blades 1.5–4 × 0.3–0.8 mm. |
Calyces | asymmetric, recessed opposite banner, (4.5–)4.8–7.2 mm, densely pilose; tube 2.4–3.4 mm, hyaline intervals usually with row of inconspicuous blister glands between ribs (or eglandular), lobes triangular-aristate, spurred laterally near proximal end, unequal, abaxial longest. |
± asymmetric, slightly recessed opposite banner, 3.4–4.3 mm, pilose; tube 1.9–2.3 mm, with 2–5 small, pale blister glands between ribs, lobes lanceolate to ovate. |
Legumes | 2.5–3 mm, densely pubescent distally, eglandular. |
2.5–3 mm, pilosulous distally and gland-dotted. |
Seeds | 1.5–1.8 mm. |
1.7–2.1 mm. |
Principal | leaves 0.5–1.5 cm; leaflets 5 or 7(or 9), blades obovate to oblanceolate, 1.5–5 mm. |
leaves 3–7 cm; leaflets 7 or 9, blades oblanceolate to oblong-elliptic, (12–)15–25 mm. |
Perennial | herbs, short-lived, erect, glabrous proximal to inflorescences. |
|
2n | = 14. |
= 14. |
Dalea pulchra |
Dalea cylindriceps |
|
Phenology | Flowering spring. | Flowering summer. |
Habitat | Sandy to gravelly or rocky grasslands, open oak, juniper, or pine woodlands, desert scrub. | Sandy soils or gravelly places near streams, sandsage shrublands in dunes. |
Elevation | 900–1400 m. (3000–4600 ft.) | 900–1600 m. (3000–5200 ft.) |
Distribution |
AZ; NM; Mexico (Chihuahua, Sonora)
|
CO; KS; NE; NM; OK; SD; TX; WY |
Discussion | Plants of Dalea pulchra are attractive in flower. The spikes shatter quickly at anthesis; legumes and seeds are seldom seen. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Dalea cylindriceps is wide-ranging; its distribution is discontinuous and it is seldom common. Although many of the specimens show a strong perennial root, others look more like sturdy annuals, having perhaps flowered during the first year of growth. In Texas, the species is known from the trans-Pecos and west-central part of the state. The name Dalea compacta has been misapplied to the species now known as D. cylindriceps (R. C. Barneby 1977c). (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 | ||
Synonyms | Petalostemon macrostachyus | |
Name authority | Gentry: Madroño 10: 227, plate 14. (1950) | Barneby: Mem. New York Bot. Gard. 27: 228. (1977) |
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