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Vascular Plants of California
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Frasera albicaulis var. modocensis


Higher Taxonomy
Family: GentianaceaeView DescriptionDichotomous Key
Common Name: GENTIAN FAMILY
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
Reference: von Hagen & Kadereit 2002 Syst Bot 27:548--572
Unabridged Reference: St. John 1941 Amer Midl Naturalist 21:1--29
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
NATIVE
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
Jepson eFlora Author: Bruce G. Baldwin
Reference: von Hagen & Kadereit 2002 Syst Bot 27:548--572
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Citation for this treatment: Bruce G. Baldwin 2012, Frasera albicaulis var. modocensis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=59218, accessed on October 18, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on October 18, 2019.

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:
CaRH, MP
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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).





 

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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.