We value your privacy

We use cookies and other technologies to enhance your experience, analyse site usage, help with reporting, and assist in other ways to improve the website. You can choose to allow cookies and other technologies or decline. Your choice will not affect site functionality.

Volume I (1961) - Flora of New Zealand Indigenous Tracheophyta - Psilopsida, Lycopsida, Filicopsida, Gymnospermae, Dicotyledons
Copy a link to this page Cite this record

Senecio bifistulosus Hook.f.

S. bifistulosus Hook. f. Fl. N.Z. 1, 1853, 144.

Type locality: Dusky Sound. Type: K, Lyall.

Stout closely branched shrub up to 6 dm. tall, main branches decumbent at base, ascending; upper branches c. 1 cm. diam., with pale bark; final branchlets c. 2.5 mm. diam., invested with remains of lf-bases. Lvs very close-set, 2-2.5 cm. × 1·5-2 mm. (not including revolute margins), narrow-linear, abruptly subacute, subcoriac., glab. except for woolly fringe on margins, broadened to submembr. base; margins revolute to stout midrib, crenulately constricted at line of revolution. Capitula c. 3 cm. diam., solitary, terminal on arrested branchlets up to 10 cm. long, and bearing ∞ lflike bracts up to 1·5 cm × 1 mm. Phyll. c. 12, c. 1 cm. long; closely subtended by bracts overtopping capitulum in bud; softly tomentose on back, with broad scarious margins. Ray-florets yellow, spreading, c. 15 mm. long, broad-oblong, clawed; achenes 1·5 mm. long, linear-oblong, glab., obscurely ribbed; pappus-hairs up to 4·5 mm. long, rather rigid, strongly barbellate.

DIST.: S. Dusky Sound: Lyall, Hector, Buchanan. Chalky Inlet: Kirk (non-flowering specimen).

The type material consists of a branch with branchlets ± 2.5 mm. diam.; lvs ± 2 cm. × 2.5 mm., If-bases persistent. Peduncle c. 10 cm., with ∞ bracts c. 1·5 cm. × 1 mm. Phyll. hyaline, margined, pilose, c. 1 cm. long, oblong, acute; ray-florets ± 1·75 mm. long. There is a packet of achenes. The Hector (1861) and Buchanan specimens are perfectly comparable.

Click to go back to the top of the page
Top