rameal withered by flowering, (light grayish green) firm apices ± white-spine-tipped (often with clusters of smaller leaves in axils); basal sessile, blades
12 KB (1,003 words) - 21:03, 29 July 2020
width","spine architecture or pubescence or relief","spine atypical width","spine course","spine length","spine life cycle","spine orientation","spine pubescence"
4 KB (765 words) - 09:19, 30 July 2020
to linear (inner), entire, apices sometimes expanded and fringed, not spine-tipped. Receptacles turbinate, bearing elongate subulate scales. Florets 1 per
7 KB (469 words) - 20:08, 29 July 2020
± winged (wings not spine-tipped); inner (disc) compressed-prismatic (± quadrate, sometimes 2 angles winged, wings not spine-tipped); all ± ribbed or nerved
8 KB (533 words) - 20:53, 29 July 2020
wings not spine-tipped); inner (disc) compressed-prismatic to columnar (adaxial, rarely abaxial, angles sometimes ± winged, wings not spine-tipped); ribs
7 KB (498 words) - 20:54, 29 July 2020
or acuminate, spineless or tipped with spines 1–9 mm or truncate, abruptly mucronate, and spineless or minutely spine-tipped. Corollas blue or purple (rarely
7 KB (726 words) - 20:15, 29 July 2020
Leaves (light grayish green) firm, margins entire, strigose, apices ± spine-tipped; basal withering by flowering, sessile, blades oblanceolate, 10–40 ×
13 KB (856 words) - 21:03, 29 July 2020
size","spine architecture","spine atypical length","spine coloration","spine course","spine duration","spine length","spine prominence","spine relief"
8 KB (810 words) - 09:19, 30 July 2020
appendages more herbaceous, prominently veiny, spiny-dentate or lobed, spine-tipped. Receptacles convex to conic, epaleate, bearing subulate scales. Florets
9 KB (624 words) - 20:02, 29 July 2020
3-angled (each angle ± winged, wings not spine-tipped); inner compressed, adaxial angles ± winged (wings not spine-tipped); ribs 0, faces glabrous (pericarps
6 KB (438 words) - 20:53, 29 July 2020
margins dentate and often coarsely pinnately lobed, teeth and lobes spine-tipped, glabrous or puberulent. Heads discoid, borne singly, terminal and in
7 KB (462 words) - 20:00, 29 July 2020
67 67 Stems rigid, spine-tipped (thorny); leaves cauline, entire; phyllaries 3–5; florets 3–5 Pleiacanthus 67 Stems not spine-tipped; leaves basal and cauline
30 KB (805 words) - 20:06, 29 July 2020
"seed quantity","sepal duration","sepal fusion","sepal quantity","spine presence","spine pubescence","stamen quantity","stem architecture","stem orientation"
6 KB (384 words) - 12:05, 30 July 2020
entire, occasionally crenulate, crisped, undulate, or lobed, rarely awn-tipped (Goodmania). Inflorescences terminal or terminal and axillary, cymose and
23 KB (1,508 words) - 10:29, 30 July 2020
"segment duration","segment fragility","spine architecture","spine duration","spine fragility","spine presence","spine texture","stamen quantity","stamen shape"
8 KB (720 words) - 09:15, 30 July 2020
lanceolate spine-tipped lobes; cauline spreading or recurved, lanceolate to ovate, rigid, clasping, 3–7-veined from base, margins with narrow spine-tipped lobes
6 KB (642 words) - 20:02, 29 July 2020
variability","seed-coat coloration","seed-coat relief","spine fragility","spine pubescence or texture","spine shape","stamen quantity","stem architecture","stem
3 KB (452 words) - 09:28, 30 July 2020
extrafloral nectaries; blade simple, rarely lobed (Pterostegia), rarely awn-tipped (Goodmania). Inflorescences terminal or terminal and axillary, cymose and
21 KB (927 words) - 10:29, 30 July 2020
"segment duration","segment fragility","spine architecture","spine duration","spine fragility","spine presence","spine texture","stamen quantity","stamen shape"
9 KB (746 words) - 09:15, 30 July 2020
Latin centrum, center, and atherum, prickle or awn, perhaps alluding to spine-tipped middle phyllaries of original species Treatment appears in FNA Volume
6 KB (491 words) - 20:05, 29 July 2020