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Prickly Ash 簕欓花椒 (Zanthoxylum avicennae) (TSANG_TszTo)
Updated on 11/04/2018

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Description

A: Woody tree, common in CUHK campus
B: Compound leaf: Odd pinnate/ imparipinnate
C: Young sapling with spikes on dorsal side of leaves, less common in older leaves (so don’t grep or rub the saplings hard!!)
D: Sharp thorns also found on shoot, not uncommon on shoot of young and older trees
E: Common nectar source for many butterfly species larvae; might be Papilio polytes? (photo taken on 11-Apr-2018)
F: Fruit reddish with fragrance, smells a bit spicy; fruit type: follicle (opens only on one side to release its seeds in black colour) (photo taken on 5-Mar-2018)

More information:
(i) http://syhuherbarium.sls.cuhk.edu.hk/collections/factsheet-pro/zanthoxylum-avicennae/
(ii) http://www.hkugaps.edu.hk/butterfly_garden/EEC_vegetation_Prickly_Ash/EEC_vegetation_Prickly_Ash.htm

Location

New Asia College, United College, Main campus

Comments

Well-done.

Good observation and detailed and interesting information. Great sharing.

by Cherry_Chow (Teacher) at 2018-04-17 11:15:08

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Odd pinnate

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Follicle

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petal , sepal , pileus , pistil , suspensor , epidermis , stipe , ovule , Labellum , stamen

Prickly Ash 簕欓花椒 (Zanthoxylum avicennae) (TSANG_TszTo) Updated on 11/04/2018

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Prickly Ash 簕欓花椒 (Zanthoxylum avicennae) (TSANG_TszTo)
Updated on 11/04/2018