Rhamnus pirifolia

Greene

Pittonia 3: 15. 1896.

Common names: Island redberry
Synonyms: Rhamnus crocea subsp. pirifolia (Greene) C. B. Wolf R. crocea var. pirifolia (Greene) Little
Treatment appears in FNA Volume 12. Treatment on page 47. Mentioned on page 46.
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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 +