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|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Oleaceae||View Description||Dichotomous Key|
|Genus: Fraxinus||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Fraxinus velutina Torr.
Habit: Tree < 15 m, trunk to 3 dm diam; dioecious. Stem: bark gray, furrowed; twigs cylindric, gray-brown, minutely coarse-hairy to velvety or becoming glabrous. Leaf: compound, 9--20(30) cm, occasionally stiff-leathery, minutely coarse-hairy to velvety throughout or generally adaxially, often becoming glabrous, hairs generally erect, straight, to 0.5 mm; petiole 2--8 cm, channeled; leaflets (3)5--7, 3--10 cm, 1.5--3.5 cm wide, lanceolate to lance-ovate or lance-obovate, tapered to base, long tapered at tip, entire to serrate, lateral leaflets generally smaller, with stalk 4--6(10) mm, terminal leaflet more tapered at base, with stalk 10--27 mm. Flower: petals 0. Staminate Flower: calyx < 1 mm, anthers 2(3), 2--3 mm. Pistillate Flower: calyx 1--2 mm, green, +- unequally cut; style 0.5, stigma 2--3.5 mm. Fruit: 15--38 mm, 3--6(8) wide; body 12--14 mm, +- cylindric, wing flat, extending proximally as tapering margin onto distal 1/4 of fruit body; fruit pedicel tip much expanded. Chromosomes: 2n=46,92.
Ecology: Canyons, streambanks, woodland; Elevation: 200--1600 m. Bioregional Distribution: s SN, SCo, TR, PR, s SNE, DMoj; Distribution Outside California: to southwestern Utah, Texas, northern Mexico. Flowering Time: Mar--Apr Note: Many southern California specimens show introgression with Fraxinus latifolia.
eFlora Treatment Author: Family description, key to genera by Thomas J. Rosatti; treatment of genera by James Henrickson
Jepson Online Interchange
Previous taxon: Fraxinus parryi
Next taxon: Ligustrum
Citation for this treatment: Family description, key to genera by Thomas J. Rosatti; treatment of genera by James Henrickson 2016. Fraxinus velutina, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=26119, accessed on July 28, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on July 28, 2016.