Plants shrubs, (3) 5–15 dm tall, 5–15 dm across; leaves cauline 1⁄2 or more length of flowering stem, the petioles 0.5–1.5 cm long, the blades broadly ovate to nearly orbiculate, 1–3 (3.5) cm long and wide, floccose to tomentose on both surfaces or floccose adaxially; inflorescences compact and rather flat-topped, 3–10 cm long, the branches densely tomentose; involucres 2–3.5 mm long, 1.5–2.5 mm wide; flowers 2.5–3 mm long, the perianth white, glabrous. Continue reading →

Plants subshrubs or shrubs, 2–6 (8) dm tall, 3–8 (12) dm across; leaves cauline 1⁄2 or more length of flowering stem, the petioles 0.5–0.8 cm long, the blades usually elliptic, 2–4 cm long, 1–1.5 cm wide, densely tomentose abaxially, usually glabrous and green adaxially; inflorescences 3–10 cm long, the branches glabrous or nearly so; involucres 1–2 mm long, 1–1.5 (2) mm wide; flowers 1.5–2.5 mm long, the perianth yellow to pale yellow, rarely nearly white, glabrous. Continue reading →

Plants subshrubs or shrubs, 2–10 dm tall, 3–10 (15) dm across; leaves cauline 1⁄2 or more length of flowering stem, the petioles 0.5–1 cm long, the blades lanceolate to oblanceolate or elliptic, 1–4 cm long, 0.5–1.5 cm wide, usually densely tomentose abaxially, floccose or nearly glabrous and greenish adaxially; inflorescences 3–10 cm long, the branches tomentose to floccose; involucres 1–2 mm long, 1–1.5 (2) mm wide; flowers 1.5– 2.5 mm long, the perianth usually pale yellow to yellow, sometimes white, glabrous. 2n = 40.

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Plants shrubs, 3–12 dm tall, 4–23 dm across; leaves cauline 1⁄2 or more length of flowering stem, the petioles 0.3–1.5 cm long, the blades elliptic to oblong, 0.8–2.5 (3) cm long, 0.4–0.8 cm wide, white-lanate to densely white-tomentose abaxially, silvery-floccose adaxially; inflorescences 2–20 cm long, the branches floccose; involucres 1.5–2 mm long, 1–1.5 mm wide; flowers 2–3 mm long, the perianth yellow to pale yellow or, rarely, white, glabrous. Continue reading →

Plants subshrubs or shrubs, 3–10 dm tall, 3–10 dm across; leaves cauline 1⁄2 or more length of flowering stem, the petioles 0.2–0.6 (0.8) cm long, the blades lanceolate to oblanceolate or elliptic, 1–3 (4.5) cm long, (0.3) 0.5–1.5 cm wide, usually densely tomentose on both surfaces, sometimes less so and greenish adaxially; inflorescences 3–10 cm long, the branches tomentose to floccose; involucres 1.5–3.5 mm long, 1–2 mm wide; flowers 2–3.5 mm long, the perianth white to cream, glabrous. 2n = 40. Continue reading →