Phemeranthus calycinus |
Phemeranthus rugospermus |
|
---|---|---|
largeflower fameflower |
prairie fameflower, rough-seed fameflower |
|
Habit | Plants to 4 dm; roots fleshily woody. | Plants to 2.5 dm; roots elongate, fleshily woody. |
Stems | ascending or erect, simple or branching. |
± erect, simple or sometimes branching. |
Leaves | sessile; blade subterete, to 7 cm. |
sessile; blade terete, to 6 cm. |
Inflorescences | cymose, much overtopping leaves; peduncle scapelike, to 25 cm. |
cymose, much overtopping leaves; peduncle scapelike, to 15 cm. |
Flowers | sepals persistent, ovate to suborbiculate, 4–6 mm; petals pink- to red-purple, obovate, 10–15 mm; stamens 25–45; stigma 1, subcapitate, 3-lobed. |
sepals deciduous, ovate, 4 mm; petals pink to magenta, ovate to obovate, sometimes mucronulate, 6.5–8 mm; stamens 12–28; stigmas 3, spreading widely, linear, 1/2–1/3 as long as styles. |
Capsules | broadly ovoid, 6–7 mm. |
subglobose, 4 mm. |
Seeds | without arcuate ridges, 1 mm. |
without arcuate ridges, 1.2 mm, corrugate-rugulose overall. |
2n | = 24, 48. |
= 24. |
Phemeranthus calycinus |
Phemeranthus rugospermus |
|
Phenology | Flowering May–Oct. | Flowering May–Aug. |
Habitat | Rocky or sandy soil, on or near outcrops | Sand or sandy soils, dunes, mounds, flats, banks, ridges, edges of igneous or metamorphic rock outcrops, along or near watercourses |
Elevation | 100-1200 m (300-3900 ft) | 0-500 m (0-1600 ft) |
Distribution |
AR; CO; IL; KS; LA; MO; NE; NM; OK; TX
|
IA; IL; IN; KS; LA; MN; NE; TX; WI
|
Discussion | Some populations of Phemeranthus calycinus are diploid while others are tetraploid, the latter probably the result of autopolyploidy (W. H. Murdy and M. E. B. Carter 2001). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Within the overall area of its distribution, Phemeranthus rugospermus is nowhere abundant, its occurrence being everywhere spotty and localized. According to T. S. Cochrane (1993), the disjunctions probably reflect a history of long-distance dispersal from a center in the partially unglaciated Kansas and Nebraska sandhills, the present-day gaps resulting from a paucity of suitable habitats between that area and the others where it is now found. Even so, its discovery in Missouri, Arkansas, and/or Oklahoma would not be surprising. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 4, p. 492. | FNA vol. 4, p. 494. |
Parent taxa | Portulacaceae > Phemeranthus | Portulacaceae > Phemeranthus |
Sibling taxa | ||
Synonyms | Talinum calycinum, Claytonia calycina | Talinum rugospermum |
Name authority | (Engelmann) Kiger: Novon 11: 320. (2001) | (Holzinger) Kiger: Novon 11: 320. (2001) |
Web links |