Page:Manual of the New Zealand Flora.djvu/428

388 margins waved or crisped, spinous-toothed; lower ones petiolate, upper semi-amplexicaul with rounded auricles. Heads ¾–1 in. diam., crowded in a short corymbose panicle, sometimes almost umbellate. Involucre glabrous, bracts acute. Achenes oblong, compressed, longitudinally ribbed but not marked with transverse wrinkles or asperities.—Kirk, Students Fl. 362. S. oleraceus ''var. β, Hook. f. Fl. Nov. Zel. i. 153; Handb. N.Z. Fl.'' 166.

2. S. oleraceus, ''Linn. Sp. Plant.'' 794.—A tall erect annual herb 2–3 ft. high, glabrous or sparsely glandular above. Leaves lanceolate, entire or toothed or pinnatifid; margins flat or nearly so, not crisped; lower ones petiolate, upper semi-amplexicaul with sagittate acute auricles. Heads ¾–1 in. diam., crowded in a short corymbose panicle, often subumbellate. Involucres glabrous or slightly cottony at the base, sometimes with a few glandular hairs. Achenes linear-oblong, compressed, longitudinally grooved and conspicuously transversely wrinkled.—S. oleraceus ''var. α, Hook, f. Fl. Nov. Zel. i. 153; Handb. N.Z. Fl. 166; Kirk, Students Fl.'' 362.

3. S. grandifolius, ''T. Kirk in Trans. N.Z. Inst.'' xxvi. (1894) 266.—Rootstock stout, fleshy, creeping, sometimes 2½ in. diam. Stem tall, robust, succulent, corymbosely branched above, 2–5 ft. high. Radical leaves 1–2½ ft. long, 4–8 in. broad; petioles 6–9 in., stout, dilated at the base but not amplexicaul; blade oblong or ovate-oblong, irregularly pinnatifid or pinnate; segments 4–6 pairs, broad, overlapping, coarsely doubly serrate or dentate, almost spinous-toothed, subcoriaceous, scabrid above, veins finely reticulate. Upper cauline leaves sessile by a broad base. Heads large, 1–1½ in. diam.; pedicels clothed with white cottony wool. Involucral bracts in 3–4 series, broadest at the base, gradually tapering into