Flora of North America species comparison

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Dalea hallii

Dalea grayi

Hall's prairie clover

Gray's prairie-clover
Stems

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

(3–)3.5–7(–9) dm, eglandular or sparsely gland-dotted.
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, densely flowered, not involucrate, 7–9 mm diam.;

axis not visible, (0.4–)0.7–5.5(–7) cm;

bracts persistent, (2.2–)2.5–4.5 mm.
Peduncles

usually absent, rarely to 1 cm.

0.5–5(–10) cm.
Stamens

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

10, 5.5–7 mm, filaments distinct to 2.7–4 mm, anthers 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.

white or whitish, banner reddish or purplish in age;

not conventionally papilionaceous;

banner plane, 4–5.7 mm, blade triangular-cordate to rhombic-ovate, not peltate, 1.6–2.5 × 2–2.4 mm; epistemonous petals attached high on stamen tube, just proximal to separation of filaments, blades 2.2–3.1 × 0.8–1.4 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.

subsymmetric, 3.6–4.8(–5.2) mm, silky-pilosulous;

tube 2–2.7 mm, with 3–6 glands between ribs, lobes triangular-acuminate to -aristate.
Legumes

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

2.2–2.5 mm, villosulous distally and dotted with small glands.
Seeds

2.2 mm.

1.6 mm.
Perennial

herbs, decumbent to ascending, strigulose.

herbs, erect, glabrous proximal to inflorescences.
Principal

leaves 1.5–4.5 cm;

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

leaves 1–5 cm;

leaflets (11–)17–43, blades elliptic-oblanceolate to narrowly obovate, 1–4.5(–5.5) mm.
2n

= 14.

Dalea hallii

Dalea grayi
Phenology Flowering spring (fall). Flowering fall (spring–summer).
Habitat Rocky outcrops in grasslands, usually on limestone. Rocky slopes, washes, canyons, open pine or oak woodlands.
Elevation 100–600 m. (300–2000 ft.) 700–2200 m. (2300–7200 ft.)
Distribution
from FNA
TX
[BONAP county map]
from FNA
AZ; NM; Mexico (Chihuahua, Durango, Sinaloa, Sonora)
[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 grayi occurs in southeastern Arizona as far northwest as Gila County and far southwestern New Mexico (Grant and Hidalgo counties).

(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. 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. 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 Parosela grayi
Name authority A. Gray: Proc. Amer. Acad. Arts 8: 625. (1873) (Vail) L. O. Williams: Ann. Missouri Bot. Gard. 23: 450. (1936)
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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