Flora of North America species comparison

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Dalea hallii

Dalea polygonoides

Hall's prairie clover

six-weeks prairie-clover
Stems

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

0.5–3 dm, sparsely glandular-verruculose distally.
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, 5.5–8(–9) mm diam.;

axis usually not visible, (0.5–)0.8–2.5(–3) cm;

bracts persistent through anthesis, 2–4 mm.
Peduncles

usually absent, rarely to 1 cm.

1.5–7(–15) cm.
Stamens

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

(6 or)7–9, usually 5 fertile, 2.2–3.5 mm, filaments distinct to 0.4–0.7 mm, anthers 0.1–0.2 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.

usually rose-purple to lavender, rarely white;

not conventionally papilionaceous;

banner 2.7–3.8 mm, blade flabellate, 1.4–2.3 × 1.2–1.5 mm; epistemonous petals attached near middle of stamen tube, blades somewhat unequal, laterals 1.3–1.6 × 0.3–0.6 mm, abaxials 1.3–1.9 × 0.7–1 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, recessed opposite banner, 2.8–4 mm, sparsely pilose or glabrous proximally;

tube 1.6–2.1 mm, with 1(or 2) large blister glands between ribs, lobes triangular-aristate.
Legumes

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

2.5–3 mm, pilosulous distally, eglandular.
Seeds

2.2 mm.

1.5–1.9 mm.
Perennial

herbs, decumbent to ascending, strigulose.

Principal

leaves 1.5–4.5 cm;

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

leaves (0.7–)1–3 cm;

leaflets (3 or) 5 or 7 (or 9), blades oblong-oblanceolate, 5–12(–15) mm.
Annual

herbs, erect, glabrous proximal to inflorescences.
2n

= 14.

Dalea hallii

Dalea polygonoides
Phenology Flowering spring (fall). Flowering late summer–fall.
Habitat Rocky outcrops in grasslands, usually on limestone. Rocky slopes, flats, roadsides, openings in pine or juniper forests.
Elevation 100–600 m. (300–2000 ft.) 1900–2800 m. (6200–9200 ft.)
Distribution
from FNA
TX
[BONAP county map]
from FNA
AZ; NM; TX; Mexico (Chihuahua, Durango)
[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 polygonoides occurs at higher elevations throughout much of Arizona, New Mexico, and trans-Pecos Texas.

(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. 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. 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
Name authority A. Gray: Proc. Amer. Acad. Arts 8: 625. (1873) A. Gray: Smithsonian Contr. Knowl. 5(6): 39. (1853)
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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