Difference between revisions of "Rhamnus serrata"
Syst. Veg. 5: 295. 1819.
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|genus=Rhamnus | |genus=Rhamnus | ||
|species=Rhamnus serrata | |species=Rhamnus serrata | ||
Revision as of 18:21, 24 September 2019
Shrubs to small trees, 0.8–2.5 m, unarmed. Branchlets gray-brown, 2 cm, puberulent, glabrescent. Bud scales dark red to reddish brown, coriaceous, dull. Leaves deciduous, alternate to subopposite; petiole 3–4 mm; blade usually yellowish brown, rarely green, abaxially, green adaxially, elliptic to elliptic-lanceolate or elliptic-oblong, 1.5–5(–5.5) cm, herbaceous, base cuneate to rounded or truncate, margins serrulate to crenulate, apex obtuse, both surfaces minutely hirtellous, often more densely so abaxially; secondary veins 5–8(–11) pairs, all diverging at nearly same angle. Inflorescences fascicles or flowers solitary. Pedicels 1–4 mm. Sepals 4. Petals 4. Drupes black, globose or slightly elongate, 4–6(–8) mm; stones 2.
Phenology: Flowering Apr–Jun.
Habitat: Canyons, stream banks, open hillsides, ledges, ridges, among boulders, gravelly limestone hills, roadsides, mesic forests, woodlands.
Elevation: 1500–2600 m.
Distribution
Ariz., N.Mex., Tex., Mexico, Central America (Guatemala).
Discussion
Selected References
None.