Flora of North America species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Jatropha dioica var. graminea

Jatropha dioica var. dioica
Photo is of parent taxon

leatherstem
Photo is of parent taxon

leatherstem
Habit Plants to 0.5 m. Leaves: blade linear-spatulate, 1.5–2.5 × 0.2–0.4 cm, unlobed; only midvein visible. Plants to 1 m. Leaves: blade oblanceolate to narrowly obovate, 3.5–5(–7) × 0.3–0.7 cm, usually unlobed, sometimes deeply 3-lobed (in moister sites); secondary veins visible.
Flowers

sepals connate basally;

petals white;

stamen filaments connate to 1/4 length.

sepals distinct;

petals pinkish white;

stamen filaments connate 3/4+ length.

Jatropha dioica var. graminea

Jatropha dioica var. dioica
Phenology Flowering and fruiting late spring–early summer. Flowering and fruiting late spring–early summer.
Habitat Dry sandy soils. Dry sandy or rocky soils.
Elevation 100–900 m. (300–3000 ft.) 400-–2500 m. (1300-–8200 ft.)
Distribution
from FNA
TX; Mexico (Chihuahua, Coahuila, San Luis Potosí, Zacatecas)
[BONAP county map]
from FNA
TX; Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas)
[BONAP county map]
Discussion

The distribution of var. graminea lies west of that of var. dioica and does not extend as far south. In Texas, it is restricted to the trans-Pecos region. Some Mexican specimens erroneously annotated as var. graminea are actually Jatropha rzedowskii J. Jiménez Ramírez.

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

Variety dioica is widespread in eastern Mexico south to Zacatecas. R. McVaugh (1945b) reported the range as south to Oaxaca but most of the specimens annotated by him and others as this taxon are currently recognized as two related but morphologically distinct species (Jatropha elbae J. Jiménez Ramírez, and J. oaxacana J. Jiménez Ramírez & R. Torres). In Texas, it is found mainly south and east of the Pecos River.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 12, p. 205. FNA vol. 12, p. 205.
Parent taxa Euphorbiaceae > Jatropha > Jatropha dioica Euphorbiaceae > Jatropha > Jatropha dioica
Sibling taxa
J. dioica var. dioica
J. dioica var. graminea
Synonyms J. dioica var. sessiflora
Name authority McVaugh: Bull. Torrey Bot. Club 72: 39. (1944) unknown
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).



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

Choose a data source: Flora of North America

The species comparison tool is brought to you by:
Northwest Wildflowers