Siebera
(so called in honour of F. W. Sieber, of Prague, 1785-1844, a botanist who travelled in the East). SYN. Trachymene (of De Candolle). ORD. Umbelliferae. A genus comprising fourteen species of green-house, rigid herbs with a perennial (almost woody) stock and virgate branches, or Heath-like shrubs, glabrous or slightly glandular-pubescent, all natives of Australia. Flowers white, small; calyx teeth small, but usually conspicuous; petals entire; involucral bracts small; umbels compound or rarely simple, terminal. Leaves all entire, or the lower ones divided or all reduced to small scales, without stipules. The under-mentioned species is, perhaps, the only representative of the genus which has been introduced to English gardens, and is probably not now in cultivation. For culture, see Trachymene.
S. Billardieri lanceolata (Billardiere's, lanceolate-leaved). fl., involucral bracts linear; umbels compound, sessile or peduncled. l. lanceolate, acute, narrowed at the base, mostly above 1/2in. long. 1829. A shrub, either low and diffuse or erect and attaining a height of 2ft. to 3ft. (B. M. 3334, under name of Trachymene lanceolata.)