Pennsylvania as non-persistent introductions. The plants are somewhat succulent, gland-dotted annuals with stems decumbent to procumbent, leaves oblanceolate to
18 KB (990 words) - 20:56, 5 November 2020
glabrate or glabrous, usually resin-gland-dotted (sometimes ± pitted), adaxial faces ± scabrellous or glabrate, sometimes resin-gland-dotted (rarely pitted).
9 KB (628 words) - 20:50, 5 November 2020
faces glabrous or hairy (not villous), often gland-dotted (pericarps sometimes with myxogenic cells, without resin sacs; embryo sac development monosporic);
11 KB (1,203 words) - 20:57, 5 November 2020
structures have been called glands, glandular hairs, glandular trichomes, punctae, resin dots, and so on. Sometimes, the glands are embedded in epidermal
270 KB (5,940 words) - 20:46, 31 January 2022
juvenile leaves linear, flattened, spreading; often with solitary abaxial resin gland; resin canal present. Pollen cones maturing and shed annually, solitary,
12 KB (1,137 words) - 20:26, 28 December 2023
nerved, or ribbed (glabrous or hirsutulous to strigillose, sometimes resin-gland-dotted as well); pappi usually persistent, usually in 2 series (outer
7 KB (548 words) - 20:50, 5 November 2020
apices sometimes green, faces glabrous or tomentose, sometimes gland-dotted, sometimes with resin pockets. Receptacles flat, pitted, epaleate. Disc florets
7 KB (461 words) - 20:58, 5 November 2020
rounded, obtuse, or truncate teeth tipped by resin globules. Sporadically, individual plants may have some teeth resin-tipped and some teeth apiculate; such specimens
18 KB (1,335 words) - 21:07, 5 November 2020
ribs 2–3 or 5–10, faces glabrous or gland-dotted (pericarps with myxogenic cells only in S. potentilloides, without resin sacs); pappi usually 0 (of 3–5 subulate
5 KB (375 words) - 20:57, 5 November 2020
of the distal gland, long-stipitate-glandular to hairs with stalks clearly visible, 1–3-times longer than the diameter of the distal gland. Anderson, L
19 KB (930 words) - 21:05, 5 November 2020
scalelike, rhomboid, free portion of long-shoot leaves to 4 mm; abaxial gland present or absent. Pollen cones with 4–10 pairs of sporophylls, each sporophyll
5 KB (427 words) - 21:23, 5 November 2020
apices truncate, usually densely strigose and gland-dotted, each margin usually with an adaxial resin gland; receptacles plus paleae and florets = discs
5 KB (342 words) - 21:09, 5 November 2020
require microscopic observation, such as the distribution of glands (sometimes referred to as “resin dots”) and the color of anther appendages; they still are
28 KB (884 words) - 21:11, 5 November 2020
cordate, palmately lobed, sometimes unlobed; surfaces abaxially resin-dotted and×or gland-dotted. Inflorescences: staminate inflorescences axillary and terminal
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(without resin sacs). Cypselae cylindro-obconic, ribs 5–8(–10), faces glabrous, usually gland-dotted (pericarps without myxogenic cells or resin sacs; embryo
4 KB (437 words) - 20:57, 5 November 2020
sessile; margins entire or dentate to pinnatifid or palmatifid (faces often gland-dotted). Heads usually heterogamous (disciform or radiate), sometimes homogamous
24 KB (1,707 words) - 21:07, 5 November 2020
serrate, sometimes ciliate, faces glabrous or scabrous, gland-dotted (sometimes in ± deep, resin-filled pits, sometimes sessile) or pustulate, often ± resinous
6 KB (460 words) - 14:15, 7 March 2024
spreading to ascending or erect, green when young, highly branched, glabrous, gland-dotted (sometimes in pits), resinous. Leaves ascending-spreading; blades
4 KB (348 words) - 19:32, 6 November 2020
tubes ± cylindric (not basally dilated, ± gland-dotted), throats campanulate, lobes 5, deltate (without resin sacs). Cypselae dimorphic: outer (ray) 3-angled
3 KB (341 words) - 20:57, 5 November 2020
(rarely entire), apices obtuse to acute, abaxial or both faces usually resin-gland-dotted. Heads ± discoid, sessile, not individually bracteate, in clusters
4 KB (326 words) - 20:50, 5 November 2020