Flora of North America species comparison

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Dalea pogonathera

Hall's prairie clover

bearded dalea, bearded prairie clover

Stems

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

(0.4–)0.7–3.5 dm, sparsely glandular-punctate.

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, loosely flowered, not involucrate, 9–18(–20) mm diam.;

axis visible, 1–8 cm;

bracts persistent, 3–6 mm.

Peduncles

usually absent, rarely to 1 cm.

0.5–4 cm.

Stamens

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

9 or 10, (6.5–)7.5–10.5 mm, filaments distinct to 1.7–3 mm, anthers (0.4–)0.5–0.7 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.

violet-purple, banner with whitish or greenish center; papilionaceous;

banner (4.5–)4.8–7.8 mm, blade broadly ovate, proximally cordate, 2–3.6 × 2.4–4 mm; epistemonous petals attached near middle of stamen tube;

wings 2.3–3.9 × 1.2–2.1 mm;

keel connate valvately, blades 3.4–5.8 × 1.9–3.1 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.

± asymmetric, opening oblique, 5.2–10.5 mm, densely villosulous;

tube 2.6–3.4 mm, with 4–7 small glands between ribs, lobes triangular-aristate, becoming plumose.

Legumes

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

2.8–3.5 mm, densely pilosulous distally, eglandular.

Seeds

2.2 mm.

1.9–2.4 mm.

Perennial

herbs, decumbent to ascending, strigulose.

herbs, decumbent to ascending, glabrous proximal to inflorescences.

Principal

leaves 1.5–4.5 cm;

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

leaves (0.4–)0.8–2(–2.5) cm;

leaflets (3 or)5 or 7, blades oblanceolate to oblong-elliptic, (1.5–)2–10 mm.

Dalea pogonathera

Phenology

Flowering spring (fall).

Habitat

Rocky outcrops in grasslands, usually on limestone.

Elevation

100–600 m. (300–2000 ft.)

Distribution

[BONAP county map]

sw United States; n Mexico

[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.)

Varieties 2 (2 in the flora).

The varieties of Dalea pogonathera are geographically mostly separated with a broad transitional zone where intermediate individuals occur. Variety pogonathera is the more westerly distributed and upland form; var. walkerae has a more easterly range and occurs in more lowland situations. The region of intermediacy occurs in the Rio Grande valley from roughly Val Verde County to Zapata County.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key

1. Spike diam. 13–18(–20) mm; calyx: longest lobe.	var. pogonathera
1. Spike diam. 9–12(–13) mm; calyx: longest lobe to.	var. walkerae

Source

FNA vol. 11.

Parent taxa

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. 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. 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

Subordinate taxa

D. pogonathera var. pogonathera, D. pogonathera var. walkerae

Name authority

A. Gray: Proc. Amer. Acad. Arts 8: 625. (1873)

A. Gray: Mem. Amer. Acad. Arts, n. s. 4: 31. (1849)

Web links

Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).

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