Flora of North America species comparison

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Eysenhardtia orthocarpa

Eysenhardtia texana

Tahitian kidneywood

Texas kidneywood
Habit Shrubs, 1–3(–5) m. Leaves (1–)2–7(–10) cm; leaflets (7–)13–35(–47), blades elliptic to oblong, 3–13 mm, surfaces sparsely to moderately pubescent, abaxially with some glands much larger than others, largest along midvein and margins.
Racemes

3–11(–15) cm.
Flowers

calyx tube 2–4 mm, lobes obtuse to acute, 0.3–0.7 mm;

corolla 5–8 mm;

style with gland near tip.
Legumes

ascending, usually falcate, rarely straight, oblong, 6–13 × 2–3 mm, length more than or equal to 3 times width, flattened near base.
Seeds

filling ca. 2/3 of legume, slightly compressed, oblong-subreniform to falcate-ellipsoid, edges blunt.
2n

= 20.

Eysenhardtia orthocarpa

Eysenhardtia texana
Phenology Flowering Mar–Nov.
Habitat Grasslands, open woodlands, shrublands, semi-desert, mildly disturbed areas.
Elevation 10–1600[–2500] m. (0–5200[–8200] ft.)
Distribution
from USDA
sw United States; n Mexico
[WildflowerSearch map]
[BONAP county map]
from FNA
TX; Mexico (Chihuahua, Coahuila, Durango, Guerrero, Hidalgo, México, Nuevo León, Puebla, San Luis Potosí, Tamaulipas, Veracruz)
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 2 (1 in the flora).

In the United States, only the widespread, typical variety of Eysenhardtia orthocarpa is native; var. tenuifolia Lang is found only in Mexico (J. M. Lang and D. Isely 1982; R. McVaugh 1987; F. Shreve and I. L. Wiggins 1964 [treated as E. reticulata Pennell]).

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

Eysenhardtia texana is widespread and common in parts of central, southern, and western Texas, particularly in calcareous soils. Stems and leaves of this species apparently have antibacterial and antifungal chemical properties (G. A. Wächter et al. 1999).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Eysenhardtia Fabaceae > subfam. Faboideae > Eysenhardtia
Sibling taxa
E. spinosa, E. texana
E. orthocarpa, E. spinosa
Subordinate taxa
E. orthocarpa var. orthocarpa
Name authority (A. Gray) S. Watson: Proc. Amer. Acad. Arts 17: 339. (1882) Scheele: Linnaea 21: 462. (1848)
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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