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Vascular Plants of California
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Zeltnera namophila
SPRING-LOVING CENTAURY


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: ZeltneraView DescriptionDichotomous Key


Common Name: CENTAURY
Habit: Annual, glabrous. Stem: erect, generally branched. Leaf: cauline, opposite (sometimes also basal). Inflorescence: cyme. Flower: parts in 4s or generally 5s; calyx lobes >> tube (discounting thin membrane between lobes in Zeltnera davyi), appressed to corolla tube, generally not keeled; corolla salverform, white or generally pink, lobes <= tube, +- entire, scales 0, nectaries pits 0 (nectaries elsewhere 0); stamens often initially curved to 1 side, dehisced anthers spirally twisted; ovary sessile, style generally thread-like, deciduous, entire or cleft < 1 mm, stigmas 1, 2-lobed, or 2, stigmas or lobes wedge- to fan-shaped.
Species In Genus: +- 25 species: temperate, dry-mesic tropics, North America, South America. Etymology: (L. Zeltner, N. Zeltner, Swiss botanists, b. 1938, 1934) Note: Variable, difficult; further study needed, especially of chromosome numbers, hybridization. Zeltnera calycosa (Buckley) G. Mans. [Centaurium calycosum (Buckley) Fernald] not in California.
Reference: Mansion 2004 Taxon 53:719--740
Unabridged Reference: Mansion & Zeltner 2004 Amer J Bot 91:2069--2086
Zeltnera namophila (Reveal, C.R. Broome, & Beatley) G. Mans.
NATIVE
Habit: Plant (5)15--60 cm. Leaf: cauline, 10--50 mm, linear to thread-like. Inflorescence: open, +- elongate, panicle-like; pedicels generally 0--20 mm. Flower: corolla 13--18 mm, lobes 5--8 mm, lanceolate, tip obtuse to acute; stigma 1, +- 2-lobed. Chromosomes: 2n=34.
Ecology: Wet alkaline meadows, generally near springs or lakes or in alkaline marshes; Elevation: < 700 m. Bioregional Distribution: SNE, DMoj; Distribution Outside California: to Nevada. Flowering Time: Jul--Sep
Synonyms: Centaurium exaltatum (Griseb.) Piper, misappl.
Unabridged Synonyms: Centaurium namophilum Reveal, C.R. Broome, & Beatley
Unabridged Note: Plants called Centaurium namophilum var. nevadense C.R. Broome or Zeltnera nevadensis (C.R. Broome) G. Mans. are intermediate between Zeltnera exaltata and Zeltnera namophila and may be derived from hybridization followed by introgression and/or allopolyploidy.
Jepson eFlora Author: James S. Pringle
Reference: Mansion 2004 Taxon 53:719--740
Unabridged Reference: Mansion & Zeltner 2004 Amer J Bot 91:2069--2086
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Citation for this treatment: James S. Pringle 2012, Zeltnera namophila, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=85880, accessed on August 25, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on August 25, 2019.

Zeltnera namophila
click for enlargement
© 2016 Dana York
Zeltnera namophila
click for enlargement
© 2010 James M. Andre
Zeltnera namophila
click for enlargement
© 2010 James M. Andre
Zeltnera namophila
click for enlargement
© 2010 James M. Andre
Zeltnera namophila
click for enlargement
© 2010 James M. Andre
Zeltnera namophila
click for enlargement
© 2010 James M. Andre

More photos of Zeltnera namophila in CalPhotos



Geographic subdivisions for Zeltnera namophila:
SNE, DMoj
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Duplicates counted once; synonyms included.
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Blue line denotes eFlora flowering time.