Dalea pulchra |
Dalea hallii |
|
---|---|---|
Santa Catalina prairie-clover |
Hall's prairie clover |
|
Habit | Shrubs, relatively erect, stiffly-branching, silky- or velvety-pubescent distally. | |
Stems | 5–10 dm, verruculose distally. |
1.3–3(–4) dm, eglandular or with scattered small glands. |
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, relatively loosely flowered, not involucrate, 14–17 mm diam.; axis partially visible, 1–5 cm; bracts deciduous near anthesis, 4–6.5 mm. |
Peduncles | 0–1 cm. |
usually absent, rarely to 1 cm. |
Stamens | 10, 7.5–9 mm, filaments distinct to 1.8–2.8 mm, anthers 0.6–0.7 mm. |
10, 9.5–11.5 mm, filaments distinct to 2.5–3 mm, anthers (0.7–)0.8–1 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. |
yellow, rarely brownish in age; papilionaceous; banner 5–6.2 mm, blade deltate-cordate, 2.8–3.3 × 3–3.8 mm; epistemonous petals attached near middle of stamen tube; wings 3.6–5 × 2.2–2.8 mm; keel connate valvately, blades 5.2–6.4 × 3.6–4 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, recessed opposite banner, (5.1–)5.5–7.8 mm, pilosulous to pilose; tube 2.4–3 mm, with 2 or 3 small glands between ribs, lobes lanceolate-aristate. |
Legumes | 2.5–3 mm, densely pubescent distally, eglandular. |
3 mm, distally with 2 rows of ascending hairs on either side of a glabrescent row, eglandular. |
Seeds | 1.5–1.8 mm. |
2.2 mm. |
Principal | leaves 0.5–1.5 cm; leaflets 5 or 7(or 9), blades obovate to oblanceolate, 1.5–5 mm. |
leaves 1.5–4.5 cm; leaflets 3, blades linear-elliptic to linear, 8–30(–35) mm. |
Perennial | herbs, decumbent to ascending, strigulose. |
|
2n | = 14. |
|
Dalea pulchra |
Dalea hallii |
|
Phenology | Flowering spring. | Flowering spring (fall). |
Habitat | Sandy to gravelly or rocky grasslands, open oak, juniper, or pine woodlands, desert scrub. | Rocky outcrops in grasslands, usually on limestone. |
Elevation | 900–1400 m. (3000–4600 ft.) | 100–600 m. (300–2000 ft.) |
Distribution |
AZ; NM; Mexico (Chihuahua, Sonora)
|
TX |
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 hallii is endemic to central and north-central Texas from the edge of the Edwards Plateau from as far south as Bandera County northward to Fannin County along the Red River. (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 | Gentry: Madroño 10: 227, plate 14. (1950) | A. Gray: Proc. Amer. Acad. Arts 8: 625. (1873) |
Web links |