Salix lasiolepis

Salix lasiolepis Bentham

Arroyo Willow
Salicaceae

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Protologue: Pl. Hartw.: 335 (1857)
Pronunciation: Sà-lix la-si-ó-le-pis
Etymology: L. for willow, meaning to "leap, spring" + "wooly scaled"
Jepson eFlora Treatment

SD County Synoptic Voucher 1-Female plant
SD County Synoptic Voucher 2-Male plant

Key to Willows of Coastal Southern California (Tom Chester)

Distribution:
Salix_lasiolepis-SD Plant Atlas mapSalix_lasiolepis-CCH2 map 
Left: S.D. County Plant Atlas (http://sdplantatlas.org). Right: CCH2. Click to see current herbarium records.  

Salix lasiolepis image of tree Salix lasiolepis close-up of branches
Salix lasiolepis
A most common riparian tree. According to references, all willows are dioecious, male and female plants separate.
Leaves are typically glaucous beneath.

Salix lasiolepis male inflorescence Salix lasiolepis male flower
Salix lasiolepis
The inflorescence, a catkin, this one male (from a male tree). This species has two stamens per flower.
Note gland in axile of flower and outer bract (brown, covered with white trichomes, also distinctive for this species.


Salix lasiolepis female inflorescence Salix lasiolepis female flowers Salix lasiolepis single female flower
Salix lasiolepis
A female catkin and "female" (pistillate) flowers from a female tree.
As with male catkins, flower bracts are brown, but covered with white trichomes. Note also gland at inner base of petiole.


Salix lasiolepis fruit Salix lasiolepis single capsule Salix lasiolepis seed
Salix lasiolepis
Two-valved capsules dehiscing. Note comose seeds (right), meaning having a tuft of trichomes, a seed dispersal mechanism.

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