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Dudleya traskiae
''Dudleya traskiae'' is a rare succulent plant known by the common name Santa Barbara Island liveforever. This dudleya is endemic to Santa Barbara Island, one of the Channel Islands of California, where it grows on rocky bluffs. The plant has a basal rosette of flat, spade-shaped fleshy leaves up to 15 centimeters long, which are pale green to yellowish. It erects tall stems bearing dense, rounded inflorescences of many bright yellow flowers.
==Description==
''Dudleya traskiae'' is a perennial succulent herb with foliage leaves in a basal rosette. The plants are evergreen, with a branched primary stem (caudex) and are composed of one to several hundred rosettes. The branching of the stem is dichotomous. The rosette leaves number 25-35, are strap-shaped - oblanceolate to subacuminate and are 4-15 cm long and 1-4 cm wide. Leaves may be green or glaucous with a waxy covering. The flowering stems are axillary and flowering is indeterminate in paniculate or cymose clusters. The petals (5) are bright yellow, often with red veins, fused below and curving outward in the upper half. Stamens (10) are borne on the corolla tube. The fruit is composed of 5 carpels that are spreading in age, 7-8 mm long. Seeds are many and minute, narrow and pointed. ''Dudleya traskiae'' is tetraploid with a chromosome number of 34. Flowering most commonly occurs from May-July,〔 although flowering may begin as early as mid-February.〔Clark & Halvorson p.19〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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