Wildflowers of Southern Arizona
Beech (Fagaceae) Family.
Plant: tree; to 10 m high, the bark light gray, relatively thin, with many longitudinal fissures between narrow plates; young twigs densely yellowish woolly to scarcely pubescent, reddish-brown with lighter lenticels beneath the hairs, the older twigs glabrescent within about 2 years, becoming grayish, remaining more or less smooth. Leaves: unlobed, obovate, oblanceolate, or less often elliptic, 2-10 cm long, 1.5-7 cm wide, 1.3-2.5 times as long as wide, densely to scarcely covered with stellate and glandular hairs beneath, persisting about 1 year; stellate hairs of lower leaf surface with 6-11 arms; apex rounded to acute; base cordate to obtuse; petiole 2-5 mm long, usually densely woolly, less often subglabrous; midvein impressed (although often convex) above, prominent below; lateral veins 6-10 pairs, impressed and distinct above, prominent below; secondary veins impressed slightly or flat above, raised below; blade coriaceous, slightly lustrous or dull above, often golden yellow below because of glandular hairs, often concave beneath; margin slightly to strongly revolute, with 3-9, somewhat mucronate teeth. INFLORESCENCE: staminate flowers in aments; pistillate flowers solitary or in groups on spikes, these sometimes abbreviated, each pistillate flower with a separate involucre. Flowers: mostly wind-pollinated, unisexual, the perianth much reduced or absent; staminate flowers in heads or aments, the perianth greenish, the stamens 3-6; pistillate flowers usually tricarpellate, solitary or in clusters of about 3 or more, subtended individually or in groups by an involucre that develops into a woody cupule enclosing or subtending the mature fruit(s). Fruit: ACORNS 1.5-2 cm long, usually 2-4 on peduncles 1.5-6.3 cm long; cap hemispheric to deep-bowl shaped, 4-10 mm long, 10-16 mm wide, finely appressed yellowish or reddish pubescent to woolly within; scales with thickened bases; nut-shell subglabrous within or with pubescent apex and base. Misc: In oak and conifer forests; 1500-2700 m (5000-9000 ft); Apr-Jun (fr. Sep).
Santa Catalina Mountains
Oracle Ridge Trail.
Location: 200 feet beyond trailhead parking lot.
See SEINet Pictures and Description