Dalea foliosa |
Dalea cylindriceps |
|
---|---|---|
leafy prairie-clover |
Andean prairie clover |
|
Stems | 3–8 dm, eglandular. |
(1–)3–6(–8) dm, dotted with small raised glands distally. |
Inflorescences | spikes, densely flowered, not involucrate, 8–10 mm diam.; axis not visible, 1.5–4.5 cm; bracts persistent through anthesis, 4.8–5.4 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 | 0–2 cm. |
(3–)6–20 cm. |
Stamens | 5, 5.4–7.2 mm, filaments distinct to 2.7–3.7 mm, anthers 0.6–0.9 mm. |
5, 5.3–7.7 mm, filaments distinct to 2.2–4.3 mm, anthers 0.7–0.9 mm. |
Corollas | lavender-purple; not conventionally papilionaceous; banner 5.2–6 mm, blade ovate to suborbiculate, 2.1–2.5 × 2.6–3.2 mm; epistemonous petals attached at separation of filaments, blades 2.7–3 × 0.8–1 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 | subsymmetric, 3.8–4.4 mm, glabrous or lobes sometimes pilosulous; tube 2.4–2.7 mm, with 0 glands between ribs, lobes triangular-lanceolate or adaxial pair ovate-triangular. |
± 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, glabrous, dotted with small glands distally. |
2.5–3 mm, pilosulous distally and gland-dotted. |
Seeds | 1.8–2 mm. |
1.7–2.1 mm. |
Perennial | herbs, erect, glabrous proximal to inflorescences. |
herbs, short-lived, erect, glabrous proximal to inflorescences. |
Principal | leaves 3–5.5 cm; leaflets 19–29(or 31), blades oblong-oblanceolate to -elliptic, 5–10 mm. |
leaves 3–7 cm; leaflets 7 or 9, blades oblanceolate to oblong-elliptic, (12–)15–25 mm. |
2n | = 14. |
= 14. |
Dalea foliosa |
Dalea cylindriceps |
|
Phenology | Flowering late summer–fall. | Flowering summer. |
Habitat | Limestone glades, prairie remnants. | Sandy soils or gravelly places near streams, sandsage shrublands in dunes. |
Elevation | 100–300 m. (300–1000 ft.) | 900–1600 m. (3000–5200 ft.) |
Distribution |
AL; IL; TN
|
CO; KS; NE; NM; OK; SD; TX; WY |
Discussion | Dalea foliosa is rare and in 1991 was designated federally as endangered. At that time, there were 14 known populations, only four of which had state or Nature Conservancy protection. The species is in the Center for Plant Conservation’s National Collection of Endangered Plants. (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 foliosus | Petalostemon macrostachyus |
Name authority | (A. Gray) Barneby: Mem. New York Bot. Gard. 27: 245. (1977) | Barneby: Mem. New York Bot. Gard. 27: 228. (1977) |
Web links |