Rhamnus pirifolia

Greene

Pittonia 3: 15. 1896.

Common names: Island redberry
Synonyms: Rhamnus crocea subsp. pirifolia (Greene) C. B. WolfR. crocea var. pirifolia (Greene) Little
Treatment appears in FNA Volume 12. Treatment on page 47. Mentioned on page 46.
Revision as of 23:40, 26 July 2019 by FNA>Volume Importer
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Shrubs to small trees, 2.5–6(–10) m, unarmed. Branchlets purple to gray, glabrous or puberulent. Leaves persistent, alternate; petiole 5–10 mm; blade dull reddish to yellowish brown abaxially, usually shiny green adaxially, broadly elliptic to oblong or ovate-oblong, (1.5–)2–5(–6) cm, distinctly coriaceous, base cuneate to nearly truncate, margins blunt-serrate or entire, apex acute to rounded, apiculate, both surfaces glabrous; secondary veins 5–9 pairs, all diverging at nearly same angle. Inflorescences fascicles or flowers solitary. Pedicels 3–6 mm. Sepals 4. Petals 0. Drupes red, globose, 6–8 mm; stones 2.


Phenology: Flowering (Jan–)Feb–Jun.
Habitat: Steep slopes, canyon walls and bottoms, dunes, grasslands, coastal sage scrub, chaparral, pine woodlands.
Elevation: 10–500 m.

Distribution

V12 535-distribution-map.jpg

Calif., Mexico (Baja California).

Discussion

Rhamnus pirifolia is known in California on the Channel Islands and in Baja California on Guadalupe Island; it has not been implicated in hybridization with other members of the R. crocea complex.

Selected References

None.

Lower Taxa

None.
... more about "Rhamnus pirifolia"
Guy L. Nesom +  and John O. Sawyer† +
Greene +
Island redberry +
Calif. +  and Mexico (Baja California). +
10–500 m. +
Steep slopes, canyon walls and bottoms, dunes, grasslands, coastal sage scrub, chaparral, pine woodlands. +
Flowering (Jan–)Feb–Jun. +
Rhamnus crocea subsp. pirifolia +  and R. crocea var. pirifolia +
Rhamnus pirifolia +
species +