Common Name: OLIVE FAMILY Habit: Perennial herb to tree [vine], hairs 0 or peltate or not; rarely dioecious. Leaf: simple to odd-pinnately compound, alternate or generally opposite, deciduous or evergreen; stipules 0. Inflorescence: various; flowers >= 1. Flower: generally bisexual, generally radial; calyx generally minute (0), tube cup-shaped, teeth or lobes 4--15; petals (0)4--6(8), generally fused; nectar disk often present; stamens (0)2(4--5), epipetalous; pistil 1, ovary superior, chambers 2, each 2--4 ovuled, placenta axile, style 1, stigma generally 2-lobed. Fruit: drupe, capsule, or winged achene. Seed: 1 per chamber. Genera In Family: +- 25 genera, 900 species: +- worldwide; some cultivated for ornament (Forsythia; Jasminum, jasmine; Ligustrum, privet; Syringa, lilac) or food (Olea, olive). eFlora Treatment Author: Family description, key to genera by Thomas J. Rosatti; treatment of genera by James Henrickson, except as noted Scientific Editor: Bruce G. Baldwin.
Common Name: ASH Habit: Shrub or tree; generally dioecious, often bisexual (in California). Stem: older bark smooth or becoming furrowed, generally gray; lenticels broadly elliptic; twigs cylindric to 4-angled, glabrous to hairy; developing short-shoot spurs. Leaf: simple or generally odd-pinnate, opposite, deciduous; petioles channeled, occasionally winged, hairy or not; if compound, leaflets (1)3--9, lanceolate to ovate or obovate, generally acute to acuminate at tip, entire or +- crenate-serrate, generally dark green adaxially, pale abaxially, thin to +- leathery in drier habitats, generally glabrous or with simple hairs abaxially or throughout, proximal opposite on rachis, stalked or not, terminal generally largest, stalk longer. Inflorescence: axillary, of clusters or long-branched panicles; flowers pedicelled. Flower: unisexual or bisexual; calyx 1--2 mm, shallowly +- 4-lobed to cut, persistent on fruit; petals 0, 2, or 4, free or fused to basal filaments. Staminate Flower: stamens 2(3); pistil vestigial. Pistillate Flower: stamens 0; style slender; ovules 2 per chamber. Fruit: achenes, winged, wings generally flat, extending to tip or base of seed-containing chamber. Seed: generally 1. Etymology: (Latin: ancient name) Note:Fraxinus uhdei (Wenzig) Lingelsheim, Mexican ash, cultivated in western United States; similar to Fraxinus velutina, with +- larger leaves and leaflets, generally with stiff hairs to 0.5 mm bordering abaxial midvein and occasionally 2° veins abaxially (as occasionally in Fraxinus velutina), and +- larger fruit, but margins tapered to near base of fruit body; native northern Mexico to Honduras. Reference: Little 1952 J Washington Acad Sci 42:369--380; Miller 1955 Cornell Univ Agric Exp Sta Mem 335:1--64
Fraxinus latifolia Benth.
NATIVE Habit: Tree < 25 m, trunk < 1.5 m diam; dioecious. Stem: bark gray-brown, furrowed; twigs cylindric, brown-gray, +- long-shaggy-hairy or glabrous. Leaf: compound, 12--33(50) cm, +- long-shaggy-hairy or glabrous; petioles 3--7(9) cm, channeled; leaflets (3)5--7, 4--11(14) cm, 2.4--7.5 cm wide, ovate or oblong-(ob)ovate, broadly wedge-shaped to +- rounded at base, acuminate at tip, entire to +- serrate, lateral leaflets +- sessile, terminal leaflet +- larger, stalk to 10--35 mm. Flower: petals 0. Staminate Flower: calyx > 0.5 mm, 4-toothed; anthers 2, 2--3.5 mm. Pistillate Flower: calyx +- 1 mm, finely irregularly cut; style +- 3 mm; stigma +- 1.3 mm. Fruit: 25--50 mm, 5--9 mm wide; body 15--18 mm, +- cylindric, wing flat, extending proximally as tapering margin down 1/2--3/4 body; fruit pedicel tip much expanded. Chromosomes: 2n=46. Ecology: Canyons, streambanks, woodland; Elevation: < 1700 m. Bioregional Distribution: NW, CaR, SN, GV, SnFrB, MP; Distribution Outside California: to British Columbia. Flowering Time: Mar--May Note: Pure in northern California; mostly introgressed with Fraxinus velutina in southern California. Unabridged Synonyms: Fraxinus oregona Nutt.; Fraxinus pennsylvanica subsp. oregona (Nutt.) G.N. Mill. Jepson eFlora Author: Family description, key to genera by Thomas J. Rosatti; treatment of genera by James Henrickson Reference: Little 1952 J Washington Acad Sci 42:369--380; Miller 1955 Cornell Univ Agric Exp Sta Mem 335:1--64 Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Fraxinus dipetala Next taxon: Fraxinus parryi
Botanical illustration including Fraxinus latifolia
Citation for this treatment: Family description, key to genera by Thomas J. Rosatti; treatment of genera by James Henrickson 2012, Fraxinus latifolia, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=26105, accessed on April 19, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 19, 2024.
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Duplicates counted once; synonyms included.
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