Jepson Flora Project: Jepson Interchange    

 
link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

    THIS PAGE IS NO LONGER UPDATED
    AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

GENTIANACEAE

GENTIAN FAMILY

James S. Pringle (except as specified)

Annual, perennial herb
Stem decumbent to erect, < 2 m
Leaves simple, cauline (sometimes also basal), opposite or whorled, entire, sessile or basal ± petioled; stipules 0
Flower bisexual, radial, parts in 4's or 5's, except pistil 1; sepals fused, persistent; petals fused, persistent or deciduous, corolla generally without fringes or scales on inner surface, sinuses between lobes generally unappendaged; stamens epipetalous, alternate corolla lobes; ovary superior, chamber 1, placentas parietal, often intruding
Fruit: capsule, 2-valved
Seeds many
Genera in family: ± 80 genera, 900 species: worldwide; some cultivated (Eustoma , Exacum , Gentiana )
Reference: [Wood & Weaver 1982 J Arnold Arbor 63:441–487]

SWERTIA

Perennial (dying after flowering in S. albomarginata , S. fastigiata , S. parryi , S. puberulenta , S. radiata ; non-flower rosettes preceding flower-stems in these species, accompanying flower-stems in others)
Leaves: basal ± petioled; cauline < basal, generally whorled or opposite
Inflorescence: cyme or panicle of dense clusters
Flower: parts in 4's (generally 5's in S. perennis, many species outside CA); calyx fused only near base, lobes lanceolate; corolla rotate, rarely bell-shaped, sometimes with fringed ridges or scales between stamen bases, lobes > tube, sinus appendages 0, nectary pits prominent, 1–2 per lobe, pit margin fringed; ovary sessile, style short, persistent, stigma 2-branched
Species in genus: ± 120 species: temp North America, Eurasia, Africa
Etymology: (E. Sweert, Dutch herbalist, born 1552)
Reference: [St. John 1941 Amer Midl Naturalist 21:1–29]
Frasera sometimes segregated.

Native

S. radiata (Kellogg) Kuntze

MONUMENT PLANT

Plant 7–20 dm, glabrous or stem and leaves puberulent
Stem 1, > 1.5 cm wide
Leaves: basal 7–50 cm, 1–15 cm wide, oblanceolate to elliptic-obovate, tips rounded to acute; cauline whorled, lance-oblong, tips acute
Inflorescence elongate, ± dense above, open below; pedicels 1–10 cm
Flower: calyx 12–25 mm; corolla 12–20 mm, with deeply, multi-divided scales between stamen bases, light yellowish green, purple-dotted, lobes elliptic-oblong, acute to short-acuminate; nectary pits 2 per corolla lobe, narrowly elliptic
Chromosomes: 2n=78
Ecology: Mtn meadows, open woodlands
Elevation: 1500–3000 m.
Bioregional distribution: Klamath Ranges, High North Coast Ranges, High Sierra Nevada, Warner Mountains
Distribution outside California: to Washington, South Dakota, New Mexico
Synonyms: Frasera speciosa Griseb

previous taxon | next taxon
bioregional map for SWERTIA%20radiata being generated
 


Retrieve Jepson Interchange Index to Plant Names entry for Swertia radiata
Retrieve dichotomous key for Swertia
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
Return to the Jepson Interchange main page
Return to treatment index page
Glossary


University & Jepson Herbaria Home Page |
General Information | University Herbarium | Jepson Herbarium |
Visiting the Herbaria | On-line Resources | Research |
Education | Related Sites
Copyright © by the Regents of the University of California