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Plants of Taiwan

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    台灣植物誌 第二版  Flora of Taiwan, 2nd edition    Vol. 4

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    台灣植物誌第二版  Flora of Taiwan, 2nd edition  4: 979

    mm long; central florets 5-10, corolla 2 mm long. Achenes oblong, compressed, 0.5 mm long, papillose. Pappus white, ca. 2 mm long, bristles deciduous separately.

    Eastern and southern Asia to Australia. Taiwan, a weed of wastelands and cultivated fields, seasides to 2,000 m, common.

    TAIPEI: Nankang, Peng 12632; Chutzuhu, Peng 12663. ILAN: Yuanyanghu, Huang 152; Fenniaolin, Peng 13766. TAOYUAN: Paling, Peng 11013. HSINCHU: Hengshan, Peng 13674. MIAOLI: Taian, Lin 544; Kuanwu, Chen 829. TAICHUNG: Taya, Wang 1474; Szuyuan, Liu 247. NANTOU: Fenghuangshan, Chen 250; Mayfeng, Peng 9065. CHIAYI: Longmei to Tsaoshan, Peng 10052; Chuchi, Lungyunshanchuang, Wang 739. KAOHSIUNG: Taoyuan, Tienchih, Wang 1142. PINGTUNG: Wutai, Lin 307; Tahan Forest Road, Hsiao 1020. TAITUNG: Taiyuanhsiaku, Chen 436; Haituan, Peng 11723. HUALIEN: Hsioulin, Leu 81.

    7. Gnaphalium pensylvanicum Willd., Enum. Pl. Hort. Berol. 867. 1809; Drury, New Zealand J. Bot. 9: 167, fig. 4. 1971; Chang & Tseng, Fl. Reipubl. Popul. Sin. 75: 238. 1979; Osada & Osada, Pictorial Guide to Wild Flowers (Japan) 4: 132. 1984. ͸T Pl. 464

    Gnaphalium purpureum auct. Non L.: Hsu, Lu, Yang & Huang, Wild Herb. Pl. Taiwan 67. 1987.

    Annual herbs. Stems erect, simple or more often branching from base, 10-50 cm tall, grayish tomentose. Basal leaves withering at anthesis; cauline leaves remote, scarcely diminishing in size upward, sessile, oblanceolate to spatulate, 2.5-8 x 0.4-1.8 cm; apex rounded to obtuse, margins entire or slightly wavy, upper surface loosely cobwebby, greenish, lower surface gray-green, woolly. Heads numerous in axillary clusters, forming more or less interrupted leafy (leaves 1.5-5.5 cm long) spicate panicles, lower branches usually stalked. Heads 3 x 1-1.5 mm when dry, densely woolly to 2/3 from base. Outer involucral bracts ovate-lanceolate or lanceolate, ca. 2-2.5 mm long, apex long acute; inner ones linear-oblong, ca. 3 mm long, rounded to short acute. Outer florets ca. 100, corolla ca. 2.25 mm long; central florets 2 or 3, corolla ca. 2.25 mm long. Achenes brown, elliptic, 0.5 mm long, minutely glandular. Pappus white, ca. 2.3 mm long, connate at base into a ring.

    Native throughout the warmer parts of the Americas, widely adventive elsewhere. Taiwan, waste fields and roadsides, seaside to 1,700 m, common.

    TAIPEI: Nankang, Peng 12631; Tanshui, Peng 12673. TAOYUAN: Shalun, Peng 7709. HSINCHU: Hsinchuangtzu, Peng 6374; Lienhuassu, Peng 11520. MIAOLI: Huoyenshan, Lin 1001. TAICHUNG: Chingshui, Peng 4487. NANTOU: Chingching Farm, Peng 6314; Meifeng, Peng 9066. CHIAYI: Tienyunshan, Peng 8860. PINGTUNG: Chachayalaishan, Liao 226. TAITUNG: Lanyu Is., Peng 10654; Taiyuanhsiaku, Chen 435. HUALIEN: Taroko Natl. Park, Panero 6483.

    8. Gnaphalium purpureum L., Sp. Pl. 854. 1753; Drury, New Zealand J. Bot. 9: 175, fig. 7. 1971; Huang, Fl. Taiwan 6: 138. 1979. T

    Annual or biennial herbs. Stems unbranched or 1 or 2 branched from base, 15-35 cm tall. Basal leaves in rosettes, withered but persistent at anthesis, oblanceolate to spatulate, narrowed into a petiole-like base, 15-30 x 5-15 mm, apex obtuse, mucronate, margins entire or slightly wavy, upper surface green, cottony, midrib hardly sunken, lower surface densely white woolly, midrib green, raised; cauline leaves remote, gradually diminishing in size upward, linear-oblong to spatulate, becoming folded and sickle-shaped upward. Spikes compact, terminal, to 4 cm long, occasionally with 1-3 axillary clusters below terminal spike; subtending leaves equal to or longer than spike. Heads 4.5-5 x 4-5 mm when dry, almost wholly invested in loose wool when young, upper half becoming glabrous at maturity. Outer involucral bracts ovate-lanceolate to lanceolate, apex acute; innermost ones linear-oblong, apex short