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Key to families | Table of families and genera

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Family description, key to genera by Thomas J. Rosatti; treatment of genera by James Henrickson, except as noted

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, 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.
± 25 genera, 900 species: ± worldwide; some cultivated for ornamental (Forsythia; Jasminum, jasmine; Ligustrum, privet; Syringa, lilac) or food (Olea, olive). [Lee et al. 2007 Molec Biol Evol 24:1161–1180] —Scientific Editor: Bruce G. Baldwin.
Unabridged references: [Jensen et al. 2002 Phytochemisty 60:213–231; Kim & Jansen 1998 Amer J Bot 85(6): Suppl. 139; Wallander & Albert 2000 Amer J Bot 87(12):1827–1841]

Key to Oleaceae

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.
± 65 species: temperate. North America, Eurasia, tropical Asia. (Latin: ancient name) [Little 1952 J Washington Acad Sci 42:369–380; Miller 1955 Cornell Univ Agric Exp Sta Mem 335:1–64] 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.

Key to Fraxinus

F. parryi Moran CHAPARRAL ASH
Shrub to tree, 1.5–3(5) m. Stem: older stem bark gray, smooth; twigs cylindric to 4-angled; buds glandular-puberulent. Leaf: simple and/or compound, 2–5(6) cm; petiole 0.6–1.5 cm; if compound, leaflets 3, 2–5(6) cm, 1.5–3.5 cm wide, ovate to rounded, 1–4 cm, 1–2.5 cm wide, broadly tapered at base, obtuse to rounded-notched at tip, generally entire, green adaxially, pale abaxially. Inflorescence: 3–10 cm; bracts ± glandular-puberulent. Flower: bisexual; calyx 1.2–2 mm, short-toothed, thin, green, persisting on fruit; petals 2, 4.5–6.5 mm, 2.2–4.3 mm wide, oblong ovate, cream-white, united with filament base for 0.5–1.5 mm; anthers 2, 2.3–4 mm, free filaments 1.5–2 mm; stigma > narrow style. Fruit: 22–30 mm, 7–9 mm wide, body broadly oblong-oblanceolate, flat, broadly winged to near base; fruit pedicel tip slender.
Canyons, slopes, margins of mixed chaparral; 600 m. Peninsular Ranges (s San Diego Co.); Baja California. [Fraxinus dipetala var. trifoliolata Torr.; Fraxinus trifoliolata (Torr.) H. Lewis & Epling, illeg.] Feb–Mar [Online Interchange] {CNPS list}

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora,, accessed on Nov 26 2015
Citation for this treatment: [Author of taxon treatment] 2013. Fraxinus, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on Nov 26 2015

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Geographic subdivisions indicated for the distribution of Fraxinus parryi Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.