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Great Plains ragwort

San Bernardino ragwort

Habit Annuals, 20–50+ cm; taprooted (caudices ascending to erect). Perennials, 15–30+ cm; fibrous-rooted (caudices branched, erect to suberect).
Stems

1 or 2–6+, clustered (bases cyanic), glabrous or leaf axils sparsely tomentose.

1 (per rosette, rosettes clustered), lanate-tomentose to glabrescent.

Basal leaves

(and proximal cauline) petiolate;

blades oblanceolate to spatulate (usually pinnately lobed, lateral lobes 1–6+ pairs, their bases petioluliform, terminal lobes usually larger than laterals, often reniform to ± orbiculate, midribs sometimes ± winged and/or toothed between the primary lobes), 40–120+ × 10–30+ mm, bases ± cuneate, ultimate margins subentire or irregularly crenate, dentate, or lobed.

(and proximal cauline) petiolate;

blades obovate to broadly spatulate, 5–20+ × 10–15 mm, bases tapering, margins subentire or dentate apically (faces lanate-tomentose to glabrescent).

Cauline leaves

gradually reduced (± petiolate or sessile, clasping; often auriculate, pinnately dissected to pinnately lobed).

gradually reduced (sessile; spatulate to linear, densely tomentose).

Peduncles

bracteate, glabrous.

bracteate, densely lanate-tomentose.

Ray florets

8 or 13;

corolla laminae 3–7 mm.

8 or 13;

corolla laminae 8–10 mm.

Disc florets

30–45(–100+);

corolla tubes 1.5–2.5 mm, limbs (1.5–)2.5–3.5 mm.

35–50+;

corolla tubes 2–2.5 mm, limbs 2–2.5 mm.

Phyllaries

13 or 21, green (tips sometimes reddish), 3–7 mm, glabrous.

13 or 21, green, 6–8 mm, lanate-tomentose, glabrate distally.

Calyculi

inconspicuous or 0.

0.

Heads

4–25+ in corymbiform arrays.

2–8+ in compact cymiform arrays.

Cypselae

1–1.5 mm, hirtellous on ribs;

pappi 3–5 mm.

0.75–1 mm, glabrous or hispid on ribs;

pappi 3–4 mm.

2n

= 46.

= 46.

Packera tampicana

Packera bernardina

Phenology Flowering Feb–Jun. Flowering late May–late Jul.
Habitat Disturbed, wet, sandy or clay sites, roadsides, stream banks, waste areas Dry rocky slopes, duff of pine forests
Elevation 0–1000 m (0–3300 ft) 1700–2200 m (5600–7200 ft)
Distribution
from FNA
AR; KS; LA; OK; TX; Mexico
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Packera tampicana is fairly widespread along the Gulf Coastal Plain and north and in Mexico. Morphologically, P. tampicana most closely resembles P. glabella; the former grows in very wet, sandy or clay soils and open sunlight, the latter grows in drier habitats, usually in partial shade.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Of conservation concern.

Packera bernardina is known only from the San Bernardino Mountains and has been collected most frequently from Bear Valley.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 20, p. 600. FNA vol. 20, p. 579.
Parent taxa Asteraceae > tribe Senecioneae > Packera Asteraceae > tribe Senecioneae > Packera
Sibling taxa
P. anonyma, P. antennariifolia, P. aurea, P. bernardina, P. bolanderi, P. breweri, P. cana, P. cardamine, P. castoreus, P. clevelandii, P. contermina, P. crocata, P. cymbalaria, P. cynthioides, P. debilis, P. dimorphophylla, P. eurycephala, P. fendleri, P. flettii, P. franciscana, P. ganderi, P. glabella, P. greenei, P. hartiana, P. hesperia, P. hyperborealis, P. indecora, P. ionophylla, P. layneae, P. macounii, P. malmstenii, P. millefolium, P. millelobata, P. multilobata, P. musiniensis, P. neomexicana, P. obovata, P. ogotorukensis, P. pauciflora, P. paupercula, P. plattensis, P. porteri, P. pseudaurea, P. quercetorum, P. sanguisorboides, P. schweinitziana, P. spellenbergii, P. streptanthifolia, P. subnuda, P. texensis, P. tomentosa, P. tridenticulata, P. werneriifolia
P. anonyma, P. antennariifolia, P. aurea, P. bolanderi, P. breweri, P. cana, P. cardamine, P. castoreus, P. clevelandii, P. contermina, P. crocata, P. cymbalaria, P. cynthioides, P. debilis, P. dimorphophylla, P. eurycephala, P. fendleri, P. flettii, P. franciscana, P. ganderi, P. glabella, P. greenei, P. hartiana, P. hesperia, P. hyperborealis, P. indecora, P. ionophylla, P. layneae, P. macounii, P. malmstenii, P. millefolium, P. millelobata, P. multilobata, P. musiniensis, P. neomexicana, P. obovata, P. ogotorukensis, P. pauciflora, P. paupercula, P. plattensis, P. porteri, P. pseudaurea, P. quercetorum, P. sanguisorboides, P. schweinitziana, P. spellenbergii, P. streptanthifolia, P. subnuda, P. tampicana, P. texensis, P. tomentosa, P. tridenticulata, P. werneriifolia
Synonyms Senecio tampicanus, Senecio greggii, Senecio imparipinnatus Senecio bernardinus, Senecio bernardinus var. sparsilobatus, Senecio ionophyllus var. bernardinus, Senecio ionophyllus var. sparsilobatus, Senecio sparsilobatus
Name authority (de Candolle) C. Jeffrey: Kew Bull. 47: 101. (1992) (Greene) W. A. Weber & Á. Löve: Phytologia 49: 45. (1981)
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