Synonym:  Aster paternus  Cronquist

              

abc

..
Perennials.  Individual plants may produce from 1-3+ straight stems (at least below branches) from a stout caudex or short rhizome.  Stems may be nearly glabrous or evidently pubescent with short, stiff hairs.  Typical height is 1 to 2 feet.

The overall inflorescence is flat- to round-topped, tending to be confined mostly to stem summits, usually with few flower heads on short peduncles, or more often in glomerules.  Robust plants may produce additional, longer flowering branches below the terminal inflorescence, each with a flat-topped cluster of a few flower heads.

Flower heads are radiate.  Both ray and disc floret corollas are white.  Ray florets are pistillate and fertile.  Disc florets are bisexual and fertile.  Involucral bracts are somewhat thick, largely lacking chlorophyll (i.e., whitish), except for the strongly recurved, green tips.

Basal and lower stem leaves are obovate or spatulate, tapering to winged petioles; typically present at flowering.  Mid- to upper stem leaves are smaller and narrower, with shorter petioles or lacking petioles (the uppermost leaves).  Margins of larger leaves are finely toothed above the middle of the leaf blade.  Leaves may have minute, sunken glands.

Cypselae are obovoid, densely covered with short, appressed hairs.  The pappus is of minutely barbed bristles, tan in color.

Plants of dry to dry-mesic, sandy or rocky open woods or clearings.  Flowers July to August.  Native.

.

.

.

.

Similar species:  Solidago bicolor.  It may seem odd to compare Sericocarpus asteroides with Solidago bicolor.  Indeed, S. asteroides has long been considered by many to be an "aster".  However, phylogenetically, Sericocarpus is more closely related to the goldenrods than to any of the other "aster" genera.

S. asteroides and Solidago bicolor differ in the shape of the inflorescence. Sericocarpus asteroides produces a flat- to round-topped (corymb-like) inflorescence, while Solidago bicolor produces narrow, elongate, raceme-like inflorescences, sometimes also with a few, longer spreading branches.

.

.

.

.

.


Images and text copyright  botphoto.com  and Arieh Tal, 1990 to 2018.  All rights reserved.  ( Terms of use )
.