Dalea foliosa |
Dalea lumholtzii |
|
---|---|---|
leafy prairie-clover |
lumholtz's prairie clover |
|
Stems | 3–8 dm, eglandular. |
1.5–5(–6) dm, glandular-verruculose. |
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, 6–8.5 mm diam.; axis not visible, 0.4–1.4(–3) cm; bracts persistent, (1.5–)2–4 mm. |
Peduncles | 0–2 cm. |
(1.5–)2.5–10 cm. |
Stamens | 5, 5.4–7.2 mm, filaments distinct to 2.7–3.7 mm, anthers 0.6–0.9 mm. |
10, 5–7.7 mm, filaments distinct to 2.6–3.7 mm, anthers 0.6–0.7 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. |
white, or epistemonous petals blue or bluish; not conventionally papilionaceous; banner plane, 3–5.2 mm, blade ovate-elliptic to suborbiculate, not peltate, 2–2.4 × 2–2.4 mm; epistemonous petals attached near middle of stamen tube, blades 2.3–4 × 1.1–1.3 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. |
strongly asymmetric, deeply recessed opposite banner, 2.7–4(–4.3) mm, glabrate or pubescent distally; tube 2.1–2.8(–3) mm, with (0 or)3–6 minute glands between ribs, lobes subulate. |
Legumes | 2.5–3 mm, glabrous, dotted with small glands distally. |
2.2–2.6 mm, puberulent distally, eglandular. |
Seeds | 1.8–2 mm. |
1.6–1.8 mm. |
Perennial | herbs, erect, glabrous proximal to inflorescences. |
herbs, erect, pilosulous to puberulent. |
Principal | leaves 3–5.5 cm; leaflets 19–29(or 31), blades oblong-oblanceolate to -elliptic, 5–10 mm. |
leaves (2–)2.5–5 cm; leaflets (9–)21–35, blades linear, linear-oblanceolate, or linear-elliptic, (1.5–)2–9(–10) mm. |
2n | = 14. |
|
Dalea foliosa |
Dalea lumholtzii |
|
Phenology | Flowering late summer–fall. | Flowering fall. |
Habitat | Limestone glades, prairie remnants. | Open rocky hillsides and canyons, open pine or oak woodlands. |
Elevation | 100–300 m. (300–1000 ft.) | 1400–1900 m. (4600–6200 ft.) |
Distribution |
AL; IL; TN
|
AZ; Mexico (Chihuahua, Sonora) |
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.) |
Some herbarium labels comment on the lemon odor of Dalea lumholtzii. Although the epistemonous petals are generally blue or bluish, white-petaled plants are not uncommon in the flora area. (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 | |
Name authority | (A. Gray) Barneby: Mem. New York Bot. Gard. 27: 245. (1977) | B. L. Robinson & Fernald: Proc. Amer. Acad. Arts 30: 115. (1894) |
Web links |