Aruncus

Linnaeus

Opera Var., 259. 1758

Common names: Goat’s-beard bride’s-feathers barbe-de-bouc
Etymology: Greek arunkos, goat’s beard, alluding to showy fingerlike clusters forming feathery flowers
Treatment appears in FNA Volume 9. Treatment on page 422. Mentioned on page 398, 416.
Herbs, perennial, clump-forming, 5–15(–20) dm, herbage glabrous or sparsely to densely hairy, hairs simple, straight to curved, sometimes multicellular or glandular; rhizomatous, rhizomes thick, branching, woody; roots coarse, fibrous. Stems 1–5, erect, stout, simple, sometimes glaucous. Leaves deciduous, cauline, alternate, 2–3-irregularly ternate to odd-pinnate, equivalent to 2–3 pinnate; petiole present, relatively long, base 1/2 sheathing stems; blade broadly ovate, cauline reduced in size and complexity distally, 15–60 cm, thick to thin, leaflets 9–45, long-petiolulate, broadly ovate to narrowly lanceolate, margins flat, [serrate to] doubly serrate, venation pinnate. Inflorescences terminal, 500–2500-flowered, racemes forming panicles; bracts present; bracteoles present hairs simple, glandular. Pedicels present. Flowers unisexual (plants dioecious, rarely polygamous), 3–4 mm diam.; epicalyx bractlets 0; hypanthium shallowly bowl-shaped, 0.5–1 mm, nectary ring inside with simple, glandular hairs; sepals persistent, 5, spreading, triangular, margins entire; petals 5, white, obovate to elliptic, base cuneate; staminate: stamens (15–)20(–30) in 1 series (between calyx and nectar ring), longer than petals; torus minute; pistillate: nectar ring scarcely developed, stamens rudimentary, carpels 3, free, glabrous, styles terminal; ovules 2–4. Fruits follicles, 3(or 4), pedicels recurving, fruits inverted, retrorse, ovate-elongate, 1.5–5 mm, shining, glabrous, dehiscent along whole adaxial suture; hypanthium persistent; sepals persistent, spreading to appressed; styles persistent, forming a beak. Seeds 2–4, elongate, membranous, caudate at both ends, scalariform-reticulate, seed coat loose. x = 7, 9.

Distribution

North America, Eurasia, temperate regions.

Discussion

Species 1.

Lower Taxa

Facts about "Aruncus"
AuthorT. Lawrence Mellichamp +
AuthorityLinnaeus +
Common nameGoat’s-beard +, bride’s-feathers + and barbe-de-bouc +
DistributionNorth America +, Eurasia + and temperate regions. +
EtymologyGreek arunkos, goat’s beard, alluding to showy fingerlike clusters forming feathery flowers +
IllustratorMarjorie C. Leggitt +
Publication titleOpera Var., +
Publication year1758 +
Referencemellichamp1976a +
Source xmlhttps://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse grained fna xml/V9/V9 712.xml +
Taxon familyRosaceae +
Taxon nameAruncus +
Taxon parentRosaceae tribe Spiraeeae +
Taxon rankgenus +
VolumeVolume 9 +