FNA: Dalea reverchonii vs. Dalea hallii

	Dalea reverchonii	Dalea hallii
	Comanche Peak prairie clover	Hall's prairie clover
Stems	1.5–2 dm, eglandular.	1.3–3(–4) dm, eglandular or with scattered small glands.
Inflorescences	spikes, loosely flowered, not involucrate, 8–10 mm diam.; axis visible, 1.5–5 cm; bracts deciduous, 2.5 mm.	spikes, relatively loosely flowered, not involucrate, 14–17 mm diam.; axis partially visible, 1–5 cm; bracts deciduous near anthesis, 4–6.5 mm.
Peduncles	0–1 cm.	usually absent, rarely to 1 cm.
Stamens	5, 6.1–7.2 mm, filaments distinct to 3.3–4 mm, anthers 0.7–0.9 mm.	10, 9.5–11.5 mm, filaments distinct to 2.5–3 mm, anthers (0.7–)0.8–1 mm.
Corollas	magenta-purple; not conventionally papilionaceous; banner 4.3–4.6 mm, blade ovate to elliptic, 2.1–2.3 × 1.8–2 mm; epistemonous petals attached at separation of filaments, blades 2.6–3 × 1.1–1.3 mm.	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.
Calyces	subsymmetric, 4.2–4.6 mm, silky-pilosulous to -tomentulose, hairs subappressed; tube 1.9–2.1 mm, with ribs leading to sinuses stronger than those leading to lobes, tube appearing bluntly 5-angled, with 0 glands between ribs, lobes lanceolate-acuminate or adaxial pair triangular-acuminate.	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.
Legumes	3.1–3.5 mm, pilosulous and gland-dotted distally.	3 mm, distally with 2 rows of ascending hairs on either side of a glabrescent row, eglandular.
Seeds	1.3 mm.	2.2 mm.
Perennial	herbs, decumbent, pilosulous.	herbs, decumbent to ascending, strigulose.
Principal	leaves 2–3 cm; leaflets 7 or 9, blades linear-oblong or -oblanceolate, 5–12 mm.	leaves 1.5–4.5 cm; leaflets 3, blades linear-elliptic to linear, 8–30(–35) mm.

	Dalea reverchonii	Dalea hallii
Phenology	Flowering spring–early summer (fall).	Flowering spring (fall).
Habitat	Rocky limestone soils.	Rocky outcrops in grasslands, usually on limestone.
Elevation	ca. 400 m. (ca. 1300 ft.)	100–600 m. (300–2000 ft.)
Distribution	TX [BONAP county map]	TX [BONAP county map]
Discussion	Dalea reverchonii occurs in Hood, Parker, and Wise counties in north-central Texas. It is in the Center for Plant Conservation’s National Collection of Endangered Plants. (Discussion copyrighted by Flora of North America; reprinted with permission.)	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.)
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. 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. 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. 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	Petalostemon reverchonii
Name authority	(S. Watson) Shinners: Field & Lab. 17: 84. (1949) — (as reverchoni)	A. Gray: Proc. Amer. Acad. Arts 8: 625. (1873)
Web links	WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Dalea hallii

Comanche Peak prairie clover

Hall's prairie clover

Stems

1.5–2 dm, eglandular.

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

Inflorescences

spikes, loosely flowered, not involucrate, 8–10 mm diam.;

axis visible, 1.5–5 cm;

bracts deciduous, 2.5 mm.

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

axis partially visible, 1–5 cm;

bracts deciduous near anthesis, 4–6.5 mm.

Peduncles

0–1 cm.

usually absent, rarely to 1 cm.

Stamens

5, 6.1–7.2 mm, filaments distinct to 3.3–4 mm, anthers 0.7–0.9 mm.

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

Corollas

magenta-purple;

not conventionally papilionaceous;

banner 4.3–4.6 mm, blade ovate to elliptic, 2.1–2.3 × 1.8–2 mm; epistemonous petals attached at separation of filaments, blades 2.6–3 × 1.1–1.3 mm.

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.

Calyces

subsymmetric, 4.2–4.6 mm, silky-pilosulous to -tomentulose, hairs subappressed;

tube 1.9–2.1 mm, with ribs leading to sinuses stronger than those leading to lobes, tube appearing bluntly 5-angled, with 0 glands between ribs, lobes lanceolate-acuminate or adaxial pair triangular-acuminate.

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.

Legumes

3.1–3.5 mm, pilosulous and gland-dotted distally.

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

Seeds

1.3 mm.

2.2 mm.

Perennial

herbs, decumbent, pilosulous.

herbs, decumbent to ascending, strigulose.

Principal

leaves 2–3 cm;

leaflets 7 or 9, blades linear-oblong or -oblanceolate, 5–12 mm.

leaves 1.5–4.5 cm;

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

Dalea reverchonii

Dalea hallii

Phenology

Flowering spring–early summer (fall).

Flowering spring (fall).

Habitat

Rocky limestone soils.

Rocky outcrops in grasslands, usually on limestone.

Elevation

ca. 400 m. (ca. 1300 ft.)

100–600 m. (300–2000 ft.)

Distribution

[BONAP county map]

Discussion

Dalea reverchonii occurs in Hood, Parker, and Wise counties in north-central Texas. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.

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

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.)

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. 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. 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. 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

Petalostemon reverchonii

Name authority

(S. Watson) Shinners: Field & Lab. 17: 84. (1949) — (as reverchoni)

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

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).

Choose a data source: Flora of North America

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Flora of North America species comparison

Dalea reverchonii

Dalea hallii

Dalea reverchonii

Dalea hallii