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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