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Vascular Plants of California
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Boykinia rotundifolia


Higher Taxonomy
Family: SaxifragaceaeView DescriptionDichotomous Key
Common Name: SAXIFRAGE FAMILY
Habit: Perennial herb from caudex or rhizome, generally +- hairy. Stem: often +- leafy on proximal 1/2, rarely trailing and leafy throughout. Leaf: generally simple, basal and/or cauline, generally alternate, generally petioled; veins +- palmate. Inflorescence: raceme or panicle, generally +- scapose. Flower: generally bisexual, generally radial; hypanthium free to +- fused to ovary; calyx lobes generally 5; petals generally 5, free, generally clawed, generally white; stamens 3, [4], 5, 8, or 10; pistils 1 (carpels +- fused, ovary lobed, chambers 1 or 2, placentas generally 2(3), axile or parietal or occasionally proximally axile and distally marginal in ovary lobes) or 2 (carpels free, placentas marginal), ovary nearly superior to inferior, occasionally more superior in fruit, styles generally 2(3). Fruit: capsule (generally 2(3)-beaked, valves generally 2(3), generally equal) or 2 follicles. Seed: generally many, small.
Genera In Family: +- 30 genera, 600 species: especially northern temperate, arctic, alpine; some cultivated (Bergenia, Darmera, Heuchera, Saxifraga, Tellima, Tolmiea). Note: California Mitella moved to Mitellastra, Ozomelis, Pectiantia; Suksdorfia ranunculifolia to Hemieva. Parnassia moved to Parnassiaceae.
eFlora Treatment Author: Michael S. Park & Patrick E. Elvander, except as noted
Scientific Editor: Bruce G. Baldwin.
Genus: BoykiniaView DescriptionDichotomous Key


Habit: Plant glandular; rhizome scaly; bulblets 0. Leaf: basal and cauline, distal reduced, becoming bract-like; stipules inconspicuous to leaf-like; blade round to ovate, base cordate to reniform, occasionally truncate, obtuse, or tapered, primary lobes 3--many, shallow to deep, teeth sharp-tipped. Inflorescence: +- flat-topped or +- tapered to tip, > 15-flowered, generally 1-sided; bracts sessile to short-petioled, proximal leaf-like. Flower: hypanthium partly fused to ovary; petals often ephemeral; stamens 5; pistil 1, ovary > 1/2-inferior, chambers 2, placentas 2, axile. Fruit: capsule.
Species In Genus: 8 species: North America, Asia. Etymology: (S. Boykin, Georgia naturalist, 1786--1848)
Reference: Gornall & Bohm 1985 Bot J Linn Soc 90:1--71
Boykinia rotundifolia Parry ex A. Gray
NATIVE
Habit: Plant (3)5--8(13) dm, +- stout. Leaf: 10--30 cm; stipules inconspicuous, distal generally brown-bristled; petiole 5--18 cm; leaf blade to 18 cm wide, divided < 1/8 to base, lobes and teeth +- round-sided. Inflorescence: +- tapered to tip; branches coiled at tip; flowers crowded, +- overlapping. Flower: calyx lobes 2--3 mm, triangular; petals 2--3 mm, obovate. Chromosomes: 2n=26.
Ecology: Streambanks; Elevation: < 2000 m. Bioregional Distribution: s SCoRO, TR, PR. Flowering Time: May--Jul
Jepson eFlora Author: Michael S. Park & Patrick E. Elvander
Reference: Gornall & Bohm 1985 Bot J Linn Soc 90:1--71
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Citation for this treatment: Michael S. Park & Patrick E. Elvander 2012, Boykinia rotundifolia, in Jepson Flora Project (eds.) Jepson eFlora, /eflora/eflora_display.php?tid=16011, accessed on February 17, 2020.

Citation for the whole project: Jepson Flora Project (eds.) 2020, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on February 17, 2020.

Boykinia rotundifolia
click for enlargement
© 2015 Keir Morse
Boykinia rotundifolia
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© 2003 Michael Charters
Boykinia rotundifolia
click for enlargement
© 2008 Thomas Stoughton
Boykinia rotundifolia
click for enlargement
© 2015 Keir Morse
Boykinia rotundifolia
click for enlargement
© 2015 Keir Morse
Boykinia rotundifolia
click for enlargement
© 2008 Thomas Stoughton

More photos of Boykinia rotundifolia in CalPhotos



Geographic subdivisions for Boykinia rotundifolia:
s SCoRO, TR, PR.
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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 (fruiting time in some monocot genera).