Echinopepon coulteri

(A. Gray) Rose

Contr. U.S. Natl. Herb. 5: 116. 1897.

Common names: Coulter’s wild balsam apple
Basionym: Elaterium coulteri A. Gray Smithsonian Contr. Knowl. 5(6): 61. 1853
Synonyms: Echinopepon confusus Rose
Treatment appears in FNA Volume 6. Treatment on page 20.

Stems 0.5–4 m, sparsely short-villous, hairs eglandular. Leaf-blades mostly orbiculate, deeply to shallowly lobed, 4–5 (–7) cm wide, base broadly cordate, margins entire or slightly sinuate-denticulate, surfaces sparsely hispid abaxially, hispid especially on veins adaxially. Inflorescences: staminate flowers in simple racemes 5–14 (–20) cm. Flowers: sepals linear to subulate; petals oblong to deltate, 4–6 mm, apex emarginate, surfaces glabrous or sparsely pubescent, eglandular, not punctate, corolla campanulate, 8–12 mm diam.; anther thecae recurved. Capsules 2–3 × 1.2 cm, surface and prickles eglandular-pubescent, beak 5–8 mm, prickles mostly 3–5 mm. Seeds with elliptical depression on each surface.


Phenology: Flowering Aug–Sep.
Habitat: Rocky slopes, washes
Elevation: 1500–2200 m

Distribution

V6 27-distribution-map.jpg

N.Mex., Mexico (Chihuahua), Mexico (Durango), Mexico (Zacatecas), Mexico (s to Oaxaca)

Discussion

Echinopepon coulteri is known in the flora area from Dona Ana, Grant, Hidalgo, Sierra, and Socorro counties (as cited by K. M. Stocking 1955, from vouchers at CAS, GH, POM, and US).

Selected References

None.

Lower Taxa

None.
... more about "Echinopepon coulteri"
distinct +  and connate +
Guy L. Nesom +
(A. Gray) Rose +
unbranched +  and branched +
cordate +
Elaterium coulteri +
calyptralike +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
subentire;reniform;orbiculate +
tubular +, saucer--shaped +, campanulate +  and rotate +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (?) +
Coulter’s wild balsam apple +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
campanulate +
N.Mex. +, Mexico (Chihuahua) +, Mexico (Durango) +, Mexico (Zacatecas) +  and Mexico (s to Oaxaca) +
1500–2200 m +
furrowed +  and echinate +
dehiscent +  and indehiscent +
bristly +, smooth +, hairy +  and glabrous +
tuberculate +  and muricate +
fleshy +  and hard +
echinate +, thin-walled +  and capsular +
beaked +  and symmetric +
obovoid +
Rocky slopes, washes +
subglobose +
perennial +
dioecious +  and monoecious +
campanulate +
umbellate;subumbellate +
solitary +, corymbose +, fasciculate +, racemose +  and paniculate +
mostly orbiculate;deeply shallowly lobed +
petiolate +, estipulate +  and simple +
rounded;ovate-triangular;deltate +
sinuate-denticulate +  and entire +
not differentiated +
punctate-glandular to stipitate-glandular +  and eglandular +
induplicate-valvate +  and imbricate +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
pubescent +  and glabrous +
oblong;deltate +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Flowering Aug–Sep. +
eglandular-pubescent +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Contr. U.S. Natl. Herb. +
14 cm140 mm <br />0.14 m <br /> (20 cm200 mm <br />0.2 m <br />) +
5 cm50 mm <br />0.05 m <br /> (14 cm140 mm <br />0.14 m <br />) +
slender-fibrous +
not arillate +
flattened +  and ovoid +
linear;subulate +
climbing +  and procumbent +
sprawling +  and prostrate +
short-villous +
50 cm500 mm <br />0.5 m <br /> (400 cm4,000 mm <br />4 m <br />) +
columnar +
eglandular-pubescent +, pubescent +, glabrous +  and hispid +
corrugate +  and rugose or tuberculate +
Echinopepon confusus +
Echinopepon coulteri +
Echinopepon +
species +
[2-]3-branched +
not fused +  and connate +
plant +  and climbing +