Phemeranthus brevicaulis

(S. Watson) Kiger

Novon 11: 319. 2001.

Basionym: Talinum brevicaule S. Watson Proc. Amer. Acad. Arts 21: 446. 1886
Synonyms: Talinum eximium A. Nelson Talinum pulchellum Wooton & Standley Talinum youngiae C. H. Muller
Treatment appears in FNA Volume 4. Treatment on page 491. Mentioned on page 490, 492.

Plants to 1 dm; roots fusiform, fleshily woody. Stems spreading-ascending, branching, sometimes suffrutescent. Leaves sessile; blade to 2.5 cm, distal terete or subterete, proximal flatter, broader, somewhat shorter. Inflorescences cymulose or 1-flowered, slightly to distinctly overtopping leaves; peduncle not scapelike, to 1.5 cm. Flowers: sepals persistent, ovate to elliptic-lanceolate, to 8 mm; petals light rose to purplish red, obovate, to 16 mm; stamens usually 20; stigma 1, subcapitate. Capsules ellipsoid, 4–6 mm. Seeds without arcuate ridges, 1 mm. 2n = 24.


Phenology: Flowering Apr–Sep.
Habitat: Dry woodlands on rocky slopes, ridges, and crests, in limestone and igneous soils
Elevation: 1600-3000 m

Distribution

V4 995-distribution-map.gif

Ariz., N.Mex., Tex., n Mexico (Chihuahua), n Mexico (Coahuila)

Discussion

Within the flora area Phemeranthus brevicaulis has been known most generally as Talinum pulchellum, which was based on a collection from Queen, New Mexico. However, P. brevicaule, which was described earlier (as T. brevicaule) from the Santa Eulalia Mountains in Chihuahua, Mexico, differs in no significant respect, and that epithet has priority when the two entities are merged.

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Phemeranthus brevicaulis"
Robert W. Kiger +
(S. Watson) Kiger +
membranous to chartaceous +
Talinum brevicaule +
occasionally dentate;crisped +
planate +, semiterete +  and terete +
0 cm0 mm <br />0 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
succulent +
0.1 cm1 mm <br />0.001 m <br /> (?) +  and 0.3 cm3 mm <br />0.003 m <br /> (?) +
ellipsoid +
0.4 cm4 mm <br />0.004 m <br /> (?) +  and 0.6 cm6 mm <br />0.006 m <br /> (?) +
subterete +  and terete +
Ariz. +, N.Mex. +, Tex. +, n Mexico (Chihuahua) +  and n Mexico (Coahuila) +
1600-3000 m +
not separating +
differentiated +
not separating +
differentiated +
pedicellate +, many-flowered +  and secund +
cleistogamous +
3[-5]-carpelled +
Dry woodlands on rocky slopes, ridges, and crests, in limestone and igneous soils +
1-flowered +  and cymulose +
paniculate +  and racemose +
axillary +, terminal +  and lateral +
subrosulate +, subopposite +  and alternate +
plurilocular +
short;elongate +
0 cm0 mm <br />0 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
gray +  and pale white +
light rose +  and purplish red +
fugacious +
connate +  and distinct +
obovate +
0 cm0 mm <br />0 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
Flowering Apr–Sep. +
fusiform +
estrophiolate +
brown +  and black +
sculptured +  and smooth +
circular-reniform +  and compressed +
1 cm10 mm <br />0.01 m <br /> (?) +
persistent +
ovate;elliptic-lanceolate +
0 cm0 mm <br />0 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
with filaments +  and distinct +
suffrutescent +
spreading-ascending +
Talinum eximium +, Talinum pulchellum +  and Talinum youngiae +
Phemeranthus brevicaulis +
Phemeranthus +
species +
deciduous +
fleshy +  and succulent +