Frangula rubra subsp. rubra

Endemic
Treatment appears in FNA Volume 12. Treatment on page 56.

Young branches red. Leaves scattered along branchlets; blades bright green, narrowly elliptic to oblong, 2–6 cm, base acute, margins minutely serrulate, apex acute, abaxial surface glabrous or puberulent on midrib and veins, adaxial glabrous. Drupes globose.


Phenology: Flowering Apr–Jul.
Habitat: Chaparral, woodlands.
Elevation: 1000–2700 m.

Discussion

Selected References

None.

Lower Taxa

None.
puberulent +  and glabrous +
perigynous +  and epigynous +
John O. Sawyer† +  and Guy L. Nesom +
(Greene) Grubov +
Rhamnus rubra +
protruding +
bright green +
3[-5]-veined +  and pinnate +
spinulose +, spinose +, serrate +  and entire +
denticulate +, dentate +, crenulate +, crenate +  and serrulate +
narrowly elliptic;oblong +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Calif. +, Nev. +  and Oreg. +
globose +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
1000–2700 m. +
Chaparral, woodlands. +
circumscissile +
free +  and adnate +
unisexual +  and bisexual +
(2-)4-15-flowered +  and pedunculate +
deciduous +
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–Jul. +
2-4-carpellate +
Trudy Bot. Inst. Akad. Nauk S.S.S.R., Ser. 1, Fl. Sist. Vyssh. Rast. +
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 +
Rhamnus sect. Frangula +  and Rhamnus subg. Frangula +
Frangula rubra subsp. rubra +
Frangula rubra +
subspecies +
deciduous +  and evergreen +
polygamous +, dioecious +  and synoecious +