屏東花椒
屏東花椒 |
中文學名:屏東花椒 拉丁學名:Zanthoxylum wutaiense Chen 界:植物界 門:被子植物門 Angiospermae 綱:雙子葉植物綱 Dicotyledoneae 亞 綱:原始花被亞綱 Archichlamydeae 目:芸香目 Rutales 亞 目:芸香亞目 Rutineae 科:芸香科 Rutaceae 亞 科:芸香亞科 Subfam. Rutoideae 屬:花椒屬 Zanthoxylum 種:屏東花椒 |
屏東花椒(學名 Zanthoxylum wutaiense Chen)為台灣屏東縣的特產的一種花椒。灌木,枝無毛,有鈎刺。果卵形,成熟分果瓣1-2個。產台灣屏東縣。 [1]
目錄
屏東花椒形態特徵
灌木,枝無毛,有鈎刺。
葉有小葉5-13片,葉軸近頂部有狹窄的翼葉;小葉對生,無柄,革質,長圓形至長圓狀披針形,長3-10厘米,寬1-2厘米,頂部漸尖,基部漸狹尖或楔尖,側脈每邊7-16條,中脈在葉片兩面凸起,葉緣有鈍裂齒,齒縫有油點。
花黃色,組成腋生圓錐花序;花梗長3毫米;雄花的花被片及雄蕊均5-8片(枚);雌花的子房卵狀長圓形,花柱短,柱頭頭狀。
果卵形,成熟分果瓣1-2個,徑約5毫米。[2]
Zanthoxylum wutaiense Chen in Taiwan Sci. 26(34): 56, f. 1. 1972; 台灣植物志3: 537. 1977.
Shrubs. Branchlets with prickles or unarmed, glabrous. Leaves 5-13-foliolate; rachis canaliculate, sides of channel rarely slightly spreading apically; leaflet blades sessile, opposite, oblong to oblong-lanceolate, 2.5-10 × 0.6-2 cm, leathery, midvein narrowly ridged adaxially, secondary veins 7-16 on each side of midvein, base attenuate to cuneate, margin crenulate, apex acuminate at least in terminal blade. Inflorescences axillary, paniculate. Flowers yellow. Pedicel ca. 3 mm. Perianth in 2 irregular series or 1 series, with 5-8 ± undifferentiated tepals. Male flowers: stamens 5-8. Female flowers: pistil subtended by columnar disk, 1(or 2)-carpelled; carpel ovoid to ellipsoid, with a conspicuous lateral oil gland; style short; stigma capitate. Fruit follicle ovoid, ca. 5 mm in diam. Fl. Apr.
● Exposed slopes in secondary broad-leaved forests; 1300-1400 m. Taiwan (Pingdong).