FNA: Dalea pulchra vs. Dalea bartonii

	Dalea pulchra	Dalea bartonii
	Santa Catalina prairie-clover	Warnock's prairie clover
Habit	Shrubs, relatively erect, stiffly-branching, silky- or velvety-pubescent distally.
Stems	5–10 dm, verruculose distally.	1.2–2.5 dm, gland-dotted.
Inflorescences	spikes, densely flowered, obviously involucrate (proximalmost several whorls of bracts subtending rudimentary buds), 11.5–16 mm diam.; axis not visible, 0.4–0.7 cm; bracts deciduous, interfloral ones sometimes held in place by crowded flowers, 2–6.5 mm.	spikes, ± densely flowered, not involucrate, 8 mm diam.; axis not visible, 0.3–1.4 cm; bracts early deciduous or proximal ones persistent, 2–3 mm.
Peduncles	0–1 cm.	0.1–0.6 cm.
Stamens	10, 7.5–9 mm, filaments distinct to 1.8–2.8 mm, anthers 0.6–0.7 mm.	5, 9.5 mm, filaments distinct to 4.5 mm, anthers unknown.
Corollas	bicolored, banner cream, reddish in age, epistemonous petals pink-purple; papilionaceous; banner 6–7.5 mm, blade ovate- or deltate-cordate, 2.8–4.2 × 3.4–4.4 mm; epistemonous petals attached proximal to middle of stamen tube; wings 4.1–5 × 2–2.6 mm; keel connate valvately, blades 5.2–6.8 × 3–3.5 mm.	white; not conventionally papilionaceous; banner 5.4 mm, blade deltate-obcordate, 2.5 × 3 mm; epistemonous petals attached at separation of filaments, blades 3 × 1.5 mm.
Calyces	asymmetric, recessed opposite banner, (4.5–)4.8–7.2 mm, densely pilose; tube 2.4–3.4 mm, hyaline intervals usually with row of inconspicuous blister glands between ribs (or eglandular), lobes triangular-aristate, spurred laterally near proximal end, unequal, abaxial longest.	somewhat asymmetric, slightly recessed opposite banner, 3.8–4.3 mm, glabrous; tube 2.8–3.5 mm, with 3–8+ blister glands between ribs, lobes triangular-subulate or adaxial pair triangular-acuminate.
Legumes	2.5–3 mm, densely pubescent distally, eglandular.	2.8 mm, sparsely pubescent along abaxial side, densely so at base of style, gland-dotted.
Seeds	1.5–1.8 mm.	2 mm.
Principal	leaves 0.5–1.5 cm; leaflets 5 or 7(or 9), blades obovate to oblanceolate, 1.5–5 mm.	leaves 0.8–2(–2.3) cm; leaflets 5–9, blades obovate-cuneate, 2.5–7.5 mm.
Perennial		herbs, erect, glabrous proximal to inflorescences.
2n	= 14.

	Dalea pulchra	Dalea bartonii
Phenology	Flowering spring.	Flowering summer.
Habitat	Sandy to gravelly or rocky grasslands, open oak, juniper, or pine woodlands, desert scrub.	Limestone soils.
Elevation	900–1400 m. (3000–4600 ft.)	1000–1100 m. (3300–3600 ft.)
Distribution	AZ; NM; Mexico (Chihuahua, Sonora) [WildflowerSearch map] [BONAP county map]	TX [BONAP county map]
Discussion	Plants of Dalea pulchra are attractive in flower. The spikes shatter quickly at anthesis; legumes and seeds are seldom seen. (Discussion copyrighted by Flora of North America; reprinted with permission.)	Dalea bartonii is known only from the type locality in Brewster County, although a vegetative specimen from adjacent Terrell County was annotated as D. bartonii by B. L. Turner. Dalea bartonii was assigned by D. K. Wemple (1970) to D. sabinalis (as Petalostemon sabinalis), but R. C. Barneby (1977c) considered it closer to D. scariosa and could not readily accommodate it in his concept or either D. scariosa or D. sabinalis. The known specimens were collected in July but were in late flower and early fruit, indicating that the peak of bloom was earlier. (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. 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. 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. tenuifolia, D. tenuis, D. urceolata, D. versicolor, D. villosa, D. wrightii
Name authority	Gentry: Madroño 10: 227, plate 14. (1950)	Barneby: Mem. New York Bot. Gard. 27: 239, plate 54. (1977) — (as bartoni)
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 bartonii

Santa Catalina prairie-clover

Warnock's prairie clover

Habit

Shrubs, relatively erect, stiffly-branching, silky- or velvety-pubescent distally.

Stems

5–10 dm, verruculose distally.

1.2–2.5 dm, gland-dotted.

Inflorescences

spikes, densely flowered, obviously involucrate (proximalmost several whorls of bracts subtending rudimentary buds), 11.5–16 mm diam.;

axis not visible, 0.4–0.7 cm;

bracts deciduous, interfloral ones sometimes held in place by crowded flowers, 2–6.5 mm.

spikes, ± densely flowered, not involucrate, 8 mm diam.;

axis not visible, 0.3–1.4 cm;

bracts early deciduous or proximal ones persistent, 2–3 mm.

Peduncles

0–1 cm.

0.1–0.6 cm.

Stamens

10, 7.5–9 mm, filaments distinct to 1.8–2.8 mm, anthers 0.6–0.7 mm.

5, 9.5 mm, filaments distinct to 4.5 mm, anthers unknown.

Corollas

bicolored, banner cream, reddish in age, epistemonous petals pink-purple; papilionaceous;

banner 6–7.5 mm, blade ovate- or deltate-cordate, 2.8–4.2 × 3.4–4.4 mm; epistemonous petals attached proximal to middle of stamen tube;

wings 4.1–5 × 2–2.6 mm;

keel connate valvately, blades 5.2–6.8 × 3–3.5 mm.

white;

not conventionally papilionaceous;

banner 5.4 mm, blade deltate-obcordate, 2.5 × 3 mm; epistemonous petals attached at separation of filaments, blades 3 × 1.5 mm.

Calyces

asymmetric, recessed opposite banner, (4.5–)4.8–7.2 mm, densely pilose;

tube 2.4–3.4 mm, hyaline intervals usually with row of inconspicuous blister glands between ribs (or eglandular), lobes triangular-aristate, spurred laterally near proximal end, unequal, abaxial longest.

somewhat asymmetric, slightly recessed opposite banner, 3.8–4.3 mm, glabrous;

tube 2.8–3.5 mm, with 3–8+ blister glands between ribs, lobes triangular-subulate or adaxial pair triangular-acuminate.

Legumes

2.5–3 mm, densely pubescent distally, eglandular.

2.8 mm, sparsely pubescent along abaxial side, densely so at base of style, gland-dotted.

Seeds

1.5–1.8 mm.

2 mm.

Principal

leaves 0.5–1.5 cm;

leaflets 5 or 7(or 9), blades obovate to oblanceolate, 1.5–5 mm.

leaves 0.8–2(–2.3) cm;

leaflets 5–9, blades obovate-cuneate, 2.5–7.5 mm.

Perennial

herbs, erect, glabrous proximal to inflorescences.

= 14.

Dalea pulchra

Dalea bartonii

Phenology

Flowering spring.

Flowering summer.

Habitat

Sandy to gravelly or rocky grasslands, open oak, juniper, or pine woodlands, desert scrub.

Limestone soils.

Elevation

900–1400 m. (3000–4600 ft.)

1000–1100 m. (3300–3600 ft.)

Distribution

AZ; NM; Mexico (Chihuahua, Sonora)

[WildflowerSearch map]

[BONAP county map]

Discussion

Plants of Dalea pulchra are attractive in flower. The spikes shatter quickly at anthesis; legumes and seeds are seldom seen.

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

Dalea bartonii is known only from the type locality in Brewster County, although a vegetative specimen from adjacent Terrell County was annotated as D. bartonii by B. L. Turner.

Dalea bartonii was assigned by D. K. Wemple (1970) to D. sabinalis (as Petalostemon sabinalis), but R. C. Barneby (1977c) considered it closer to D. scariosa and could not readily accommodate it in his concept or either D. scariosa or D. sabinalis. The known specimens were collected in July but were in late flower and early fruit, indicating that the peak of bloom was earlier.

(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. 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. 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. tenuifolia, D. tenuis, D. urceolata, D. versicolor, D. villosa, D. wrightii

Name authority

Gentry: Madroño 10: 227, plate 14. (1950)

Barneby: Mem. New York Bot. Gard. 27: 239, plate 54. (1977) — (as bartoni)

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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Flora of North America species comparison

Dalea pulchra

Dalea bartonii

Dalea pulchra

Dalea bartonii