''Zanthoxylum wutaiense'' (Chinese: 屏東花椒, ping dong hua jiao, Pingtung County prickly ash) is a woody plant from the family

Rutaceae The Rutaceae () is a family (biology), family, commonly known as the rueRUTACEAE
in Bo ...

. It is native to

Pingtung County Pingtung () is a County (Taiwan), county located in southern Taiwan. It has a warm tropical monsoon climate and is known for its agriculture and tourism. Kenting National Park, Taiwan's oldest national park, is located in the county. The county ...

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia. The main geography of Taiwan, island of Taiwan, also known as ''Formosa'', lies between the East China Sea, East and South China Seas in the northwestern Pacific Ocea ...

Description

''Zanthozylum wutaiense'' is a

shrub A shrub or bush is a small to medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees by their multiple ...

with

glabrous Glabrousness () is the technical term for a lack of hair, down, setae, trichomes, or other such covering. A glabrous surface may be a natural characteristic of all or part of a plant or animal, or be due to loss because of a physical condition, ...

branches and barbed spines. The leaf has 5–13 leaflets, with narrow wing leaves near the top of the leaf axis; the leaflets are opposite,

sessile Sessility, or sessile, may refer to: * Sessility (motility), organisms which are not able to move about * Sessility (botany), flowers or leaves that grow directly from the stem or peduncle of a plant * Sessility (medicine), tumors and polyps that ...

, leathery, oblong to oblong-lanceolate, 3–10 cm long and 1–2 cm wide. The top of the leaflet is

acuminate The following terms are used to describe leaf plant morphology, morphology in the description and taxonomy (biology), taxonomy of plants. Leaves may be simple (that is, the leaf blade or 'lamina' is undivided) or compound (that is, the leaf blade ...

and the base tapered or wedge-pointed. There are 7–16 lateral veins on each side, and the midribs are convex on both sides of the leaf. The edge of the leaf has blunt teeth, with oil glands in the teeth. The flowers are yellow and form axillary

panicle In botany, a panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a p ...

s; the peduncle is 3 mm long. The male flower has 5–8

tepal A tepal is one of the outer parts of a flower (collectively the perianth). The term is used when these parts cannot easily be classified as either sepals or petals. This may be because the parts of the perianth are undifferentiated (i.e. of very ...

s and

stamen The stamen (: stamina or stamens) is a part consisting of the male reproductive organs of a flower. Collectively, the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filament ...

s; the

ovary The ovary () is a gonad in the female reproductive system that produces ova; when released, an ovum travels through the fallopian tube/ oviduct into the uterus. There is an ovary on the left and the right side of the body. The ovaries are end ...

of the female flower is ovoid and oblong, with 1 or sometimes 2

carpels Gynoecium (; ; : gynoecia) is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds. The gynoecium is the innermost whorl of a flower; it consists of (one or more) ...

, a short

style Style, or styles may refer to: Film and television * ''Style'' (2001 film), a Hindi film starring Sharman Joshi, Riya Sen, Sahil Khan and Shilpi Mudgal * ''Style'' (2002 film), a Tamil drama film * ''Style'' (2004 film), a Burmese film * '' ...

and a capitate stigma. The fruit is ovoid and about 5 mm in diameter.

References

wutaiense Articles with 'species' microformats Endemic flora of Taiwan {{Rutaceae-stub