Flora of North America species comparison

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Baptisia nuttalliana

Nuttall's wild indigo
Habit Herbs compact, to 1 m, glabrate to puberulent.
Leaves

sessile or subsessile;

stipules caducous, small;

leaflets 3, blades elliptic to obovate.
Racemes

1(–3)-flowered, solitary or clustered, axillary, ebracteate.
Pedicels

2–5 mm.
Flowers

17–22 mm;

calyx 5–8 mm, pubescent;

corolla yellow, 15–20 mm.
Legumes

ascending, ovoid, 8–14 × 8–12 mm, ± woody.
Seeds

8–12.
2n

= 18.

Baptisia nuttalliana
Phenology Flowering Apr–May.
Habitat Oak and pine-oak forests, dry sandy soils.
Elevation 20–300 m. (100–1000 ft.)
Distribution
from FNA
AR; LA; MS; OK; TX
[WildflowerSearch map]
[BONAP county map]
Discussion

Baptisia nuttalliana forms occasional hybrids with B. lactea, B. leucophaea, and B. sphaerocarpa, especially in eastern Texas where these taxa are sympatric.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Baptisia
Sibling taxa
B. alba, B. arachnifera, B. australis, B. bracteata, B. calycosa, B. cinerea, B. hirsuta, B. lactea, B. lanceolata, B. lecontei, B. leucophaea, B. megacarpa, B. perfoliata, B. simplicifolia, B. sphaerocarpa, B. tinctoria
Synonyms B. confusa
Name authority Small: Fl. S.E. U.S., 599. (1903)
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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