Taxaceae Gray

Family

Gymnosperms > Cupressales

Characteristics

Trees or shrubs evergreen, usually neither resinous nor aromatic (sharp-or foul-odored in Torreya ), dioecious or monoecious. Bark scaly or fissured. Lateral branches well developed, similar to leading shoots; twigs terete, not densely clothed by leaves but ± ridged by decurrent leaf bases; longest internodes less than 1 cm; buds ± inconspicuous. Roots fibrous to woody. Leaves (needles) simple, persisting several years, shed singly, alternate [opposite], spirally arranged but often twisted so as to appear 2-ranked, linear to linear-lanceolate, decurrent; resin canals present or absent. Pollen cones maturing and shed annually, solitary or clustered, axillary on year-old branches, globose to ovoid, sporophylls bearing 2--16 microsporangia (pollen sacs); pollen ± spheric, not winged. Seed cones reduced to 1--2 ovules subtended by inconspicuous, decussate bracts, maturing in 1--2 seasons, axillary on year-old branches. Seeds 1 per "cone," erect, not winged, hard seed coat partially or wholly surrounded by a juicy, fleshy or leathery aril; cotyledons 2.
More
Trees or shrubs evergreen, dioecious or rarely monoecious. Leaves spirally arranged or decussate, linear or lanceolate, abaxial surface with 1 stomatal band on each side of prominent or inconspicuous midvein, resin canal present or absent. Pollen cones solitary in leaf or bract axils, or aggregated into spikelike complexes apically on branches; microsporophylls numerous; pollen sacs 3-9, radially arranged or on outer side of microsporophyll and then with distinct adaxial and abaxial surfaces; pollen nonsaccate. Seed-bearing structures solitary or paired in axils of leaves or bracts, pedunculate or sessile, with several overlapping or decussate bracts at base; ovule solitary, borne at apex of floral axis, erect. Seed sessile or pedunculate, drupelike or nutlike, partially enclosed in a succulent, saccate or cupular aril, or completely enclosed within aril; female gametophyte tissue abundant. Cotyledons 2. Germination epigeal, hypogeal in Torreya.
Life form annual
Growth form
Growth support -
Foliage retention evergreen
Sexuality dioecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system fibrous-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Taxaceae unspecified picture

Distribution

Taxaceae world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:30026279-2
WFO ID wfo-7000000599
COL ID GXW
BDTFX ID 101020
INPN ID 187218
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Taxaceae

Lower taxons

Taxus Torreya Cephalotaxus Pseudotaxus Amentotaxus Austrotaxus