Berberis nevinii

A. Gray in A. Gray et al.

in A. Gray et al., Syn. Fl. N. Amer. 1: 69. 1895.

Conservation concernEndemic
Synonyms: Mahonia nevinii (A. Gray) Fedde
Treatment appears in FNA Volume 3.

Shrubs, evergreen, 1-4 m. Stems ± dimorphic, with elongate primary and short or somewhat elongate axillary shoots. Bark of 2d-year stems grayish or brownish purple, glabrous. Bud-scales 2-3 mm, deciduous. Spines absent. Leaves 3-5 (-7) -foliolate; petioles 0.2-0.7 cm. Leaflet blades thin but rigid; surfaces abaxially dull, papillose, adaxially dull, glaucous; terminal leaflet stalked in most or all leaves, blade 2.1-4.1 × 0.7-1.1 cm, 3-6 times as long as wide; lateral leaflet blades lanceovate or lance-elliptic to lanceolate, 1-veined from base, base obtuse or rounded, margins plane or undulate, toothed, each with 4-11 teeth 0-1 mm high tipped with spines to 0.4-2 × 0.1-0.2 mm, apex acuminate. Inflorescences racemose, lax, 3-8-flowered, 2-5 cm; bracteoles membranous, apex acuminate, sometimes with proximal bracteoles leathery, spinose-acuminate. Flowers: anther-filaments with distal pair of recurved lateral teeth. Berries yellowish red to red, not glaucous, spheric, 5-6 mm, juicy, solid.


Phenology: Flowering winter–spring (Feb–May).
Habitat: Sandy slopes and washes in chaparral, coastal scrub, and riparian scrub
Elevation: 0-600 m

Discussion

Of conservation concern.

Berberis nevinii is known from scattered populations from San Francisquito Canyon, north of Valencia, south to Dripping Springs, near Aguanga. It is susceptible to infection by Puccinia graminis.

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

... more about "Berberis nevinii"
Alan T. Whittemore +
A. Gray in A. Gray et al. +
brownish purple +  and grayish +
rounded;obtuse +
Mahonia +
yellowish red +  and red +
not glaucous +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
2.1 cm21 mm <br />0.021 m <br /> (4.1 cm41 mm <br />0.041 m <br />) +
obovate +, oblanceolate +  and elliptic +
1.2 cm12 mm <br />0.012 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
0.7cm;1.1cm +
scale-like +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0-600 m +
small +  and large +
showy +  and inconspicuous +
0.3 cm3 mm <br />0.003 m <br /> (?) +  and 0.8 cm8 mm <br />0.008 m <br /> (?) +
compound +  and simple +
spheric +  and cylindric-ovoid or ellipsoid +
Sandy slopes and washes in chaparral, coastal scrub, and riparian scrub +
axillary +  and terminal +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
3-5(-7)-foliolate +
reduced +
toothed;undulate;plane +
1-carpellate +
basal +  and superior +
club--shaped +
3-merous +  and 2-merous +
nectariferous +
distinct +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Flowering winter–spring (Feb–May). +
in A. Gray et al., Syn. Fl. N. Amer. +
not nodose +
1 +  and 10 +
distinct +
elongate +
Conservation concern +  and Endemic +
0.4mm;2mm +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
elongating +
monomorphic +, unbranched +  and branched +
with elongate primary-stems and short axillary spur shoots +  and elongate +
palmate +  and pinnate +
persistent +
papillose +
Mahonia nevinii +
Berberis nevinii +
Berberis +
species +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
glabrous +  and with tomentose stems +