Lithocarpus densiflorus var. echinoides

(R. Brown ter) Abrams

Ill. Fl. Pacific States 1: 516. 1923.

Common names: Dwarf tanbark
Endemic
Basionym: Quercus echinoides R. Brown ter Ann. Mag. Nat. Hist., ser. 4, 7: 251. 1871
Treatment appears in FNA Volume 3.

Shrubs, ascending, to 2 (-3) m. Twigs densely tomentose. Leaf-blade usually flat, to 60mm, veins not deeply impressed. Fruits: cup scales usually strongly recurved.


Phenology: Flowering summer (Jul–Aug).
Habitat: Open conifer forest, margins of woods, and dry slopes
Elevation: 600-2200 m

Discussion

Lithocarpus densiflorus var. echinoides is found in scattered locations in the Siskiyou region and the Sierra Nevada south to Mariposa County, California.

Selected References

None.

Lower Taxa

None.
Kevin C. Nixon +
(R. Brown ter) Abrams +
furrowed +  and smooth +
brown;gray +
Quercus echinoides +
0 cm0 mm <br />0 m <br /> (6 cm60 mm <br />0.06 m <br />) +
pistillate +, capitate +  and spicate +
Dwarf tanbark +
starchy +  and fleshy +
hooked +  and subulate +
multibracteate +, spiny +  and scaly +
cup-shaped +
Calif. +  and Oreg. +
600-2200 m +
pistillate +  and staminate +
1-seeded +  and winged +
in groups +  and enclosed +
Open conifer forest, margins of woods, and dry slopes +
spicate +  and staminate +
ascending +  and erect +
unlobed +  and lobed +
arranged +  and alternate +
yellowish-brown +
glabrate +  and tomentose +
globose +  and cylindric-tapered +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Flowering summer (Jul–Aug). +
Ill. Fl. Pacific States +
few-to-many +
distinct +
distinct +
bluish green +  and gray +
glabrate +  and woolly +
Lithocarpus densiflorus var. echinoides +
Lithocarpus densiflorus +
variety +
prominent +  and obscure +
200 cm2,000 mm <br />2 m <br /> (300 cm3,000 mm <br />3 m <br />) +