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Quercus cedrosensis | |
Author | C.H.Muller 1962 Madroņo 16: 188 1962. |
Synonyms | |
Local names | Cedros Island Oak |
Range | endemic
to Baja California and to Cedros Island, in Mexico ; 300 - 1200 m ;
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Growth habit | dense bush, sometimes shrub to 2-4 m; prostate branches, layering spontaneously; |
Leaves | 0,6-2
cm; evergreen; clustered at the top of short stems; leathery; ovate to
elliptic, sometimes oblong; convex; apex pointed; base rounded or slightly
cordate; margins entire with 1-2 prickles each side, or with 2-5 pairs
of prickly teeth; bright green and glabrous above; whitish or yellowish
green and waxy beneath; 4-6 flat veins pairs, more marked beneath; epidermis
papillar and bloomy; petiole 2-3 mm, almost hairless, reddish or yellowish;
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Flowers | male
flowers in April-May, small, on short, loose catkins; |
Fruits | acorn
1.5-2.2 cm; elongated, pointed, enclosed 1/4 or 1/3 by the cup; cup stalkless
with green, tomentose, basally thick, apically brown scales; |
Bark, twigs and |
young
twigs hairy then glabrescent, reddish brown, 1-2 mm thick; |
Hardiness zone, habitat | not hardy; |
Miscellaneous | --
Sub-genus Quercus, Section Protobalanus; -- Threatened (IUCN Red List Category : VU) -- It shows a strong resemblance to the huckleberry oak (Q.vaccinifolia); resembles Q.palmeri (that has larger and more rounded leaves, and acorn cup broader); resembles too Q.chrysolepis (both leaves and acorns are larger) and Q.dumosa (tomentose leaves undersides); |
Subspecies and varieties |
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Pictures |