EcoFlora - Picea

Picea
Family: Pinaceae Max Licher	FNA Gleason & Cronquist Resources Ronald J. Taylor from Flora of North America (vol. 2) Trees evergreen; crown broadly conic to spirelike; leading shoot erect. Bark gray to reddish brown, thin and scaly (with thin plates), sometimes with resin blisters (especially in Picea engelmannii and P . glauca ), becoming relatively thick and furrowed with age. Branches whorled; short (spur) shoots absent; twigs roughened by persistent leaf bases. Buds ovoid, apex rounded to acute, sometimes resinous. Leaves borne singly, spreading in all directions from twigs, persisting to 10 years, mostly 4-angled and square in cross section (to triangular or ± flattened), mostly rigid, sessile on peglike base; base decurrent, persistent after leaves shed, sheath absent; apex usually sharp-pointed, sometimes bluntly acute; resin canals 1--2. Cones borne on year-old twigs. Pollen cones grouped, axillary, oblong, yellow to purple. Seed cones maturing in 1 season, usually shed at maturity (persisting for several years in Picea mariana ), borne mostly on upper branches, pendent, ovoid to cylindric, sessile or terminal on leafy branchlets and thus appearing ± stalked; scales persistent, elliptic to fan-shaped, thin, lacking apophysis and umbo; bracts included. Seeds winged; cotyledons 5--l5. x =12. Vascular plants of NE US and adjacent Canada Male and female cones terminating twigs of the previous year's growth; female cones pendulous, with persistent scales much exceeding the bracts; evergreen trees, the quadrangular lvs jointed at the base to a short, projecting sterigma that persists on the denuded branch; resin-ducts 2 in each lf; 2n=24. 30+, N. Temp Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp. ©The New York Botanical Garden. All rights reserved. Used by permission.
Picea abies Map not Available Picea alba Map not Available Picea alcoquiana Map not Available Picea asperata Map not Available Picea aurantiaca Media not available Map not Available Picea australis Map not Available Picea austropanlanica Media not available Map not Available Picea brachytyla Map not Available Picea brevifolia Map not Available Picea breweriana Map not Available Picea chihuahuana Map not Available Picea engelmannii Map not Available Picea glauca Map not Available Picea glehnii Map not Available Picea jezoensis Map not Available Picea koraiensis Map not Available Picea koyamae Map not Available Picea likiangensis Map not Available Picea linzhiensis Map not Available Picea lutzii Media not available Map not Available Picea mariana Map not Available Picea martinezii Map not Available Picea maximowiczii Map not Available Picea meyeri Map not Available Picea morrisonicola Map not Available Picea neoveitchii Media not available Map not Available Picea obovata Map not Available Picea omorika Map not Available Picea orientalis Map not Available Picea polita Map not Available Picea pungens Map not Available Picea retroflexa Map not Available Picea rubens Map not Available Picea schrenkiana Map not Available Picea sitchensis Map not Available Picea smithiana Map not Available Picea spinulosa Map not Available Picea torano Map not Available Picea wilsonii Map not Available Picea x albertiana Media not available Map not Available Picea x lutzii Media not available Map not Available