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Flora of Australia Online

Lepidium howei-insulae Thell., Neue Denkschr. Schweiz. Naturf. Ges. 41: 291 (1906); named after Lord Howe Is., where it is endemic.
Mustard & Cress

T: Lord Howe Is., J.P.Fullagar ; holo: ?P n.v. ; iso: K.

[Lepidium foliosum auct. non Desv.: G.Bentham, Fl. Austral. 1: 86 (1863); J.H.Maiden, Proc. Linn. Soc. New South Wales 23: 123 (1898); J.H.Maiden, Proc. Linn. Soc. New South Wales 39: 379, 381 (1914)] 

[Lepidium ruderale auct. non L.: W.B.Hemsley, Ann. Bot. (London ) 10: 231 (1896); W.R.B.Oliver, Trans. & Proc. New Zealand Inst. 49: 157 (1917)] 

Perennial subshrub to c. 1 m tall. Stems sometimes partially creeping. Leaf lamina linear, remotely pinnatisect, 2–6 (–10) cm long, 2–4 mm broad, acute to subapiculate, fleshy, glabrous; lobes opposite, remote, linear, 2–4 per side, 1–15 mm long. Sepals ovate, c. 1 mm long, green with white margins. Petals 1.5 mm long, white. Stamens usually 6. Infructescence elongate, racemose; pedicels spreading, c. 5 mm long. Silicula ellipsoidal, 4–5 mm long, acute; valves keeled. Seeds ellipsoidal, slightly oblique, 1.5 mm long. Fig. 41D.

Lord Howe Is. Endemic, with a scattered distribution. Also recorded from Balls Pyramid. Found on rocky ledges and in sandy pockets near the sea. 

L.H.Is.: Middle Bay, P.S.Green 1696 (A, K, NSW); Flagstaff (Signal Point), L.A.S.Johnson & A.N.Rodd 1223 (K, NSW); s. loc. , J.H.Maiden (K, NSW); s. loc. , C.Moore 54 (K, MEL).


Data derived from Flora of Australia Volume 49 (1994), a product of ABRS, ©Commonwealth of Australia