Flora of North America species comparison

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Dalea hallii

Dalea tenuifolia

Hall's prairie clover

bigtop dalea, flimleaf prairieclover, slimleaf prairie clover
Stems

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

(1.5–)2–5(–5.5) dm, usually pilosulous at base, glabrescent distally, 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, moderately densely flowered, not involucrate, 8–10 mm diam.;

axis becoming partially visible, (0.5–)1–7(–9) cm;

bracts deciduous by anthesis, 2.5–4.5(–5.5) mm.
Peduncles

usually absent, rarely to 1 cm.

(0.9–)1.5–8(–12.5) cm.
Stamens

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

5, 6–8.3 mm, filaments distinct to 3.5–5 mm, anthers 0.9–1.5 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.

rose-purple;

not conventionally papilionaceous;

banner 5.5–6.5 mm, blade cordate, 2.3–3.1 × 2.6–3.1 mm; epistemonous petals attached at separation of filaments, blades 2.7–3.4 × 1.2–1.5 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, (3.1–)3.4–4.5 mm, densely pilose;

tube (1.6–)1.9–2.4 mm, prominently to indistinctly 10-ribbed, ± circular in cross section, with 0 glands between ribs, lobes lanceolate or adaxial pair ovate-lanceolate to ovate.
Legumes

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

2.8–3.5 mm, pilosulous and often gland-dotted distally.
Seeds

2.2 mm.

2 mm.
Perennial

herbs, decumbent to ascending, strigulose.

herbs, diffusely spreading to decumbent, mostly pilosulous ± throughout.
Principal

leaves 1.5–4.5 cm;

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

leaves 2–4 cm;

leaflets 3 or 5, blades linear-oblanceolate, 10–22 mm.
2n

= 14.

Dalea hallii

Dalea tenuifolia
Phenology Flowering spring (fall). Flowering late spring–summer (fall).
Habitat Rocky outcrops in grasslands, usually on limestone. Rocky places, limestone soils.
Elevation 100–600 m. (300–2000 ft.) 800–1400 m. (2600–4600 ft.)
Distribution
from FNA
TX
[BONAP county map]
from FNA
CO; KS; NM; OK; TX
[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 tenuifolia is known from the southern high plains. In Texas, the species is found in the northern panhandle and extreme north-central part of the state.

(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. polygonoides, D. pringlei, D. pulchra, D. purpurea, D. reverchonii, D. sabinalis, D. scandens, D. scariosa, D. searlsiae, D. tentaculoides, D. tenuis, D. urceolata, D. versicolor, D. villosa, D. wrightii
Synonyms Petalostemon tenuifolius
Name authority A. Gray: Proc. Amer. Acad. Arts 8: 625. (1873) (A. Gray) Shinners: Field & Lab. 17: 84. (1949)
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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