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Hall's prairie clover

James' dalea, James' prairie clover

Stems

1.3–3(–4) dm, eglandular or with scattered small glands.

0.4–1.7(–2) dm, eglandular.

Inflorescences

spikes, relatively loosely flowered, not involucrate, 14–17 mm diam.;

axis partially visible, 1–5 cm;

bracts deciduous near anthesis, 4–6.5 mm.

spikes, relatively densely flowered, not obviously involucrate, (16–)18–23(–25) mm diam.;

axis not to partially visible, 1.5–6.5(–8) cm;

bracts deciduous at anthesis, (4–)5–8(–9) mm.

Peduncles

usually absent, rarely to 1 cm.

absent or very short.

Stamens

10, 9.5–11.5 mm, filaments distinct to 2.5–3 mm, anthers (0.7–)0.8–1 mm.

10, (9.5–)10–11.7 mm, filaments distinct to 1.7–3 mm, anthers (0.8–)0.9–1.2 mm.

Corollas

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.

clear yellow, orangish brown in age; papilionaceous;

banner 5.2–6.2 mm, blade deltate-cordate, 3.2–4.2 × 3.2–4.4 mm, proximal lobes connate, forming obconic pit; epistemonous petals attached proximal to middle of stamen tube;

wings 3.9–5.1 × 2.3–3.2 mm;

keel connate valvately, blades 5.3–6.3 × 3.2–3.8 mm.

Calyces

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.

somewhat asymmetric, slightly recessed opposite banner, (8.3–)8.5–12(–13.3) mm, pilose;

tube (2.4–)2.8–3.5 mm, with 3 or 4 small glands between ribs, lobes triangular-aristate.

Legumes

3 mm, distally with 2 rows of ascending hairs on either side of a glabrescent row, eglandular.

3.5–4 mm, distally with 2 rows of ascending hairs on either side of a glabrescent row, eglandular.

Seeds

2.2 mm.

2.3–3 mm.

Perennial

herbs, decumbent to ascending, strigulose.

herbs, erect to ascending, silky-pilose to -pilosulous.

Principal

leaves 1.5–4.5 cm;

leaflets 3, blades linear-elliptic to linear, 8–30(–35) mm.

leaves (0.6–)1–3(–4) cm;

leaflets 3, blades obovate to broadly oblanceolate, (3–)5–18 mm, surfaces apparently eglandular.

2n

= 14.

Dalea hallii

Dalea jamesii

Phenology Flowering spring (fall). Flowering spring–early summer (fall).
Habitat Rocky outcrops in grasslands, usually on limestone. Rocky grasslands, deserts, open pine or juniper woodlands.
Elevation 100–600 m. (300–2000 ft.) 900–2100 m. (3000–6900 ft.)
Distribution
from FNA
TX
[BONAP county map]
from FNA
AZ; CO; KS; NM; OK; TX; Mexico (Chihuahua)
[WildflowerSearch map]
[BONAP county map]
Discussion

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.)

Dalea jamesii occurs from far southwestern Kansas to southeastern Arizona. In Texas, the species occurs in the northern panhandle and trans-Pecos regions.

(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
D. albiflora, D. aurea, D. bartonii, D. bicolor, D. brachystachys, D. cahaba, D. candida, D. carnea, D. carthagenensis, D. compacta, D. cylindriceps, D. emarginata, D. enneandra, D. exigua, D. exserta, D. feayi, D. filiformis, D. flavescens, D. foliosa, D. formosa, D. frutescens, D. gattingeri, D. grayi, D. greggii, D. jamesii, D. lachnostachys, D. lanata, D. laniceps, D. lasiathera, D. leporina, D. lumholtzii, D. mollis, D. mollissima, D. multiflora, D. nana, D. neomexicana, D. obovata, D. ornata, D. phleoides, D. pinnata, D. pogonathera, D. polygonoides, D. pringlei, D. pulchra, D. purpurea, D. reverchonii, D. sabinalis, D. scandens, D. scariosa, D. searlsiae, D. tentaculoides, D. tenuifolia, D. tenuis, D. urceolata, D. versicolor, D. villosa, D. wrightii
D. albiflora, D. aurea, D. bartonii, D. bicolor, D. brachystachys, D. cahaba, D. candida, D. carnea, D. carthagenensis, D. compacta, D. cylindriceps, D. emarginata, D. enneandra, D. exigua, D. exserta, D. feayi, D. filiformis, D. flavescens, D. foliosa, D. formosa, D. frutescens, D. gattingeri, D. grayi, D. greggii, D. hallii, D. lachnostachys, D. lanata, D. laniceps, D. lasiathera, D. leporina, D. lumholtzii, D. mollis, D. mollissima, D. multiflora, D. nana, D. neomexicana, D. obovata, D. ornata, D. phleoides, D. pinnata, D. pogonathera, D. polygonoides, D. pringlei, D. pulchra, D. purpurea, D. reverchonii, D. sabinalis, D. scandens, D. scariosa, D. searlsiae, D. tentaculoides, D. tenuifolia, D. tenuis, D. urceolata, D. versicolor, D. villosa, D. wrightii
Synonyms Psoralea jamesii
Name authority A. Gray: Proc. Amer. Acad. Arts 8: 625. (1873) (Torrey) Torrey & A. Gray: Fl. N. Amer. 1: 308. (1838)
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