Frangula rubra subsp. obtusissima

(Greene) Kartesz & Gandhi

Phytologia 76: 449. 1994.

Endemic
Basionym: Rhamnus obtusissima Greene Leafl. Bot. Observ. Crit. 1: 64. 1904
Synonyms: R. rubra subsp. obtusissima (Greene) C. B. Wolf
Treatment appears in FNA Volume 12. Treatment on page 56.
Revision as of 17:33, 29 July 2020 by imported>Volume Importer
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Young branches usually red, rarely gray. Leaves scattered along branchlets; blade light green abaxially, green or dull green adaxially, oblong to obovate, 2.5–6 cm, base rounded, margins entire or serrulate, apex rounded, abaxial surface glabrous or puberulent on midrib and veins, adaxial glabrous. Drupes globose.


Phenology: Flowering Apr–Jun.
Habitat: Chaparral, montane forests.
Elevation: 800–2100 m.

Discussion

Selected References

None.

Lower Taxa

None.
puberulent +  and glabrous +
perigynous +  and epigynous +
rounded +
John O. Sawyer† +  and Guy L. Nesom +
(Greene) Kartesz & Gandhi +
rounded +
Rhamnus obtusissima +
protruding +
green +, dull +  and light green +
3[-5]-veined +  and pinnate +
spinulose +, spinose +, serrate +  and entire +
denticulate +, dentate +, crenulate +, crenate +  and serrulate +
oblong;obovate +
2.5 cm25 mm <br />0.025 m <br /> (6 cm60 mm <br />0.06 m <br />) +
gray +  and red +
Calif. +  and Nev. +
globose +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
800–2100 m. +
Chaparral, montane forests. +
circumscissile +
free +  and adnate +
unisexual +  and bisexual +
(2-)4-15-flowered +  and pedunculate +
deciduous +
serrulate +  and entire +
intrastaminal +
0.1 cm1 mm <br />0.001 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
not fleshy +
perigynous +  and epigynous +
adnate +  and distinct +
clawed +, broadly obovate +  and obcordate +
0.2 cm2 mm <br />0.002 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Flowering Apr–Jun. +
2-4-carpellate +
not furrowed +
obovoid +  and lenticular +
yellowish +  and green or white +
distinct +
spreading +  and erect +
keeled;ovate-triangular +
red +  and gray +
hairy +  and glabrous +
indehiscent +
short-puberulent +  and glabrous +
R. rubra subsp. obtusissima +
Frangula rubra subsp. obtusissima +
Frangula rubra +
subspecies +
deciduous +  and evergreen +
polygamous +, dioecious +  and synoecious +