Berberis higginsiae

Munz

Aliso 4: 91. 1958.

Conservation concern
Synonyms: Mahonia higginsiae (Munz) Ahrendt
Treatment appears in FNA Volume 3.

Shrubs, evergreen, 1-3 m. Stems ± dimorphic, with elongate primary and short or somewhat elongate axillary shoots. Bark of 2d-year stems brown or purple, glabrous. Bud-scales 2-3 mm, deciduous. Spines absent. Leaves 5-7-foliolate (or 3 by abortion of basal pair, leaving prominent articulation on petiole); petioles 0.1-0.4 cm. Leaflet blades thick and rigid; surfaces abaxially dull, papillose, adaxially dull, glaucous; terminal leaflet stalked (sessile in a few leaves), blade 1.4-3.4 × 1.1-2.4 cm, 1-2.5 times as long as wide; lateral leaflet blades oblong to ovate or elliptic, 1-3-veined from base, base obtuse or truncate, margins undulate or crispate, toothed, each with 2-5 teeth 1-4 mm high tipped with spines to 1.2-3 × 0.2-0.3 mm, apex rounded to acute. Inflorescences racemose, lax, 5-8-flowered, 2.5-8 cm; bracteoles membranous, apex acuminate. Berries yellowish red, slightly glaucous, spheric, 6-8 mm, juicy, solid.


Phenology: Flowering spring (Apr–Jun).
Habitat: Chaparral and pinyon-juniper woodland
Elevation: 800-1200 m

Distribution

V3 814-distribution-map.gif

Calif., Mexico (Baja California)

Discussion

Of conservation concern.

Berberis higginsiae is endemic to the region immediately south and east of San Diego, California. The leaflet description above fits the few known California collections; specimens with narrower leaflets (terminal leaflets to 4.5 times as long as wide) have been collected just south of the Mexican border, where leaflet shape may be variable on a single specimen. Berberis higginsiae is intermediate between B. fremontii and B. haematocarpa in its variable leaflet shape and berries that are small and juicy but yellowish red. Further study may show that it is conspecific with one of these species (R. V. Moran 1982).

Berberis higginsiae is susceptible to infection by Puccinia graminis.

Selected References

None.

Lower Taxa

None.

"thick" is not a number.

... more about "Berberis higginsiae"
Alan T. Whittemore +
purple +  and brown +
truncate;obtuse +
Mahonia +
yellowish red +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
1.4 cm14 mm <br />0.014 m <br /> (3.4 cm34 mm <br />0.034 m <br />) +
obovate +, oblanceolate +  and elliptic +
1.2 cm12 mm <br />0.012 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
1.1cm;2.4cm +
scale-like +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Calif. +  and Mexico (Baja California) +
800-1200 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 +
Chaparral and pinyon-juniper woodland +
axillary +  and terminal +
2.5 cm25 mm <br />0.025 m <br /> (8 cm80 mm <br />0.08 m <br />) +
5-7-foliolate +
reduced +
toothed;crispate;undulate +
1-carpellate +
basal +  and superior +
club--shaped +
3-merous +  and 2-merous +
nectariferous +
distinct +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Flowering spring (Apr–Jun). +
not nodose +
1 +  and 10 +
distinct +
elongate +
Conservation concern +
1.2mm;3mm +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-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 higginsiae +
Berberis higginsiae +
Berberis +
species +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
glabrous +  and with tomentose stems +