Jepson eFlora: Taxon page
Key to families | Table of families and genera | Map
Previous taxon Index to accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Next taxon
Frasera albicaulis var. modocensis

Higher Taxonomy
Family: GentianaceaeView DescriptionDichotomous Key

Habit: Annual to perennial herb [to trees]. Stem: decumbent to erect, < 2 m, simple or branched. Leaf: simple, cauline, sometimes also basal, opposite or whorled, entire, sessile or basal +- petioled; stipules 0. Flower: bisexual, radial, parts in 4s or 5s except pistil 1; sepals fused, persistent; petals fused, +- persistent, sinus between lobes often unappendaged; stamens epipetalous, alternate corolla lobes; ovary superior, chamber 1, placentas parietal, often intruding, stigmas 1--2. Fruit: capsule, 2-valved. Seed: many.
Genera In Family: +- 90 genera, 1800 species: worldwide; some cultivated (Eustoma, Exacum, Gentiana). Note: Gentianella tenella moved to Comastoma. Key to genera revised by Bruce G. Baldwin.
eFlora Treatment Author: James S. Pringle, except as noted
Scientific Editor: Thomas J. Rosatti.
Genus: FraseraView DescriptionDichotomous Key

Habit: Perennial herb (non-flowering rosettes preceding flower-stems, plants dying after flowering in Frasera albomarginata, Frasera parryi, Frasera puberulenta, Frasera speciosa, and Frasera umpquaensis; non-flowering rosettes appearing with flower-stems in others). Leaf: basal +- petioled; cauline opposite or whorled, < basal, base often fused-sheathing. Inflorescence: cyme or panicle of dense clusters. Flower: parts in 4s; calyx fused near base, lobes lanceolate; corolla rotate (bell-shaped), lobes >> tube, ridge between stamens fringed or scaled or 0, nectary pits prominent, 1(2) per lobe, margins of openings variously fringed; ovary sessile, style long and well differentiated or short and poorly differentiated, persistent, entire, stigmas 2.
Species In Genus: +- 15 species: temperate North America. Etymology: (J. Fraser, Scottish collector of North America pls, 1750--1811)
eFlora Treatment Author: Bruce G. Baldwin
Species: Frasera albicaulisView Description 

Habit: Plant 1--6.5 dm. Stem: 1--few; rosettes several. Leaf: narrowly white-margined; basal 4--23 cm, 3--12(20) mm wide, oblanceolate; cauline opposite, distal linear-oblong. Inflorescence: dense, interrupted proximally; pedicels 2--8(30) mm. Flower: calyx 3--7(12) mm; corolla 6--12 mm, green-white to pale blue, dark-blue-dotted or not, lobes elliptic-oblong, acute to short-acuminate, ridge between stamens with +- 2 mm, triangular to ovate-oblong, entire or +- coarsely jagged scales, nectary pit 1 per lobe, oblong.
Note: Varieties intergrade; 4 other varieties.

Frasera albicaulis var. modocensis (H. St. John) N.H. Holmgren
Stem: puberulent. Leaf: puberulent abaxially; larger not arching, tips obtuse to rounded. Chromosomes: 2n=52.
Ecology: Dry, brushy places; Elevation: 900--1600 m. Bioregional Distribution: CaRH, MP; Distribution Outside California: to Washington, Montana, northwestern Nevada. Flowering Time: May--Jul
Synonyms: Swertia albicaulis (Griseb.) Kuntze var. albicaulis sensuTJM(1993), in part; Swertia shastaensis H. St. John; Swertia modocensis H. St. John
eFlora Treatment Author: Bruce G. Baldwin
Jepson Online Interchange

Previous taxon: Frasera albicaulis
Next taxon: Frasera albicaulis var. nitida

Name Search


Citation for this treatment: Bruce G. Baldwin 2017. Frasera albicaulis var. modocensis, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on October 16, 2017.

Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora,, accessed on October 16, 2017.

Frasera albicaulis var. modocensis
click for enlargement
© 2009 Keir Morse
Frasera albicaulis var. modocensis
click for enlargement
© 2009 Keir Morse
Frasera albicaulis var. modocensis
click for enlargement
© 2009 Keir Morse
Frasera albicaulis var. modocensis
click for enlargement
© 2009 Keir Morse
Frasera albicaulis var. modocensis
click for enlargement
© 2009 Keir Morse

More photos of Frasera albicaulis var. modocensis in CalPhotos

Geographic subdivisions for Frasera albicaulis var. modocensis:
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
View all CCH records

CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.