Key to Fraxinus
View taxon page for Fraxinus
(For a list of species in Fraxinus, use the above link.)
Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.
1. Small to large
tree;
leaves compound,
leaflets (3)4–11(14) cm;
fruit pedicel Stalk of an individual flower in an inflorescence, or the corresponding structure in fruit.
tip expanded; plants with either
staminate or
pistillate flowers
2. Leaflets ovate Egg-shaped (i.e., widest below the middle) in two dimensions (i.e., in one plane), as a leaf.
, or oblong-(ob)ovate;
lateral leaflets ±
sessile Without a petiole, peduncle, pedicel, or other kind of stalk.
; fruit body 15–18 mm, 25–50 mm including
wing 1. Thin, flat extension or appendage of a surface or margin. 2. In many members of Fabaceae and in some other groups, each of two lateral petals.
,
tapered Gradually (not abruptly) narrower or smaller at base or tip.
wing extending
proximally to or below mid-body
..... F. latifolia 2' Leaflets
lanceolate Narrowly elongate, widest in the basal half, often tapered to an acute tip.
to lance-ovate or lance-obovate; lateral leaflets generally stalked; fruit body 12–14 mm, 15–38 mm including wing, tapered wing extending proximally to
distal 1/4 of body
..... F. velutina 1' Shrub or small tree,
stems many; leaves
simple Composed of a single part; undivided; unbranched.
or compound, leaflets 2–5(6) cm; fruit pedicel tip ± slender; flowers generally bisexual.
3. Petals generally 0; leaves simple or leaflets 3(5);
calyx irregularly cut; n&e DMtns
..... F. anomala 3' Petals 2, white or cream, 3.5–6.5 mm; leaves simple or leaflets 3–9; calyx generally 4-toothed; CA-FP
4. Petals and
filaments free except at base; leaves, including
petioles Leaf stalk, connecting leaf blade to stem; sometimes more or less indistinct.
, 7–18 cm; leaflets (3)5–7(9), generally serrate-crenate
..... F. dipetala 4' Petals
fused with
proximal filaments for 0.5–1.5 mm at base; leaves, including petioles, 2–5(6) cm, simple and/or leaflets 3; simple leaves and/or leaflets generally
entire Having margins that are continuous and smooth (i.e., without teeth, lobes, etc.).
..... F. parryi
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