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Vascular Plants of California
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Hypericum mutilum subsp. mutilum


Higher Taxonomy
Family: HypericaceaeView Description 
Common Name: ST. JOHN'S WORT FAMILY
Habit: Annual to shrub [tree]. Leaf: cauline, simple, opposite or whorled, often gland-dotted; stipules 0. Inflorescence: cyme, panicle, or flower 1, terminal or axillary. Flower: bisexual, radial; sepals persistent, generally 5, often fused at base, overlapping; petals generally 5, free; stamens generally many, free or +- fused into 3--5 clusters; pistil 1, ovary superior, chambers 1--3[5], placentas generally axile, style branches 3. Fruit: capsule, generally septicidal. Seed: many, small.
Genera In Family: 37 genera, 1610 species: worldwide, largely tropics. Note: Sometimes included in Clusiaceae.
eFlora Treatment Author: Robert E. Preston & Jennifer Talbot
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Genus: HypericumView DescriptionDichotomous Key


Habit: Annual to shrub, glabrous. Leaf: sessile Inflorescence: generally terminal cymes, bracted. Flower: sepals [4]5; petals [4]5, deciduous or persistent, generally +- yellow; anthers occasionally black-dotted; ovary chambers 1 or 3(5), placentas 3(5), axile or parietal, projecting into chamber.
Etymology: (Greek name)
Reference: Robson 2002 Bull Nat Hist Mus London, Bot 32:61--123
Hypericum mutilum L. subsp. mutilum
NATURALIZED
Habit: Annual or perennial herb, 20--60 cm. Stem: +- erect, diffuse-branched from mid-stem or lower. Leaf: leaves below inflorescence 10--25 mm, elliptic to ovate, gland-dotted; leaves above lowest flower branches not or gradually reduced, uppermost leaves linear. Inflorescence: flowers 1--15 per stem. Flower: sepals +- 3 mm, narrowly lanceolate; petals +- 2 mm, yellow; stamens 6--12; styles +- 1 mm. Fruit: +- 4 mm, oblong.
Ecology: Streambanks, riparian woodland; Elevation: < 300 m. Bioregional Distribution: ScV, adjacent n SNF; Distribution Outside California: native to eastern North America. Flowering Time: Jul--Oct Note: 2 other subspecies of eastern North America.
Unabridged Note: Specimens identified as this sp. from above 300 m are misidentified Hypericum anagalloides.
Jepson eFlora Author: Robert E. Preston & Jennifer Talbot
Reference: Robson 2002 Bull Nat Hist Mus London, Bot 32:61--123
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

Previous taxon: Hypericum hookerianum
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Citation for this treatment: Robert E. Preston & Jennifer Talbot 2012, Hypericum mutilum subsp. mutilum, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=70288, accessed on July 18, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on July 18, 2024.

Hypericum mutilum subsp. mutilum
click for image enlargement
©2015 Barry Breckling
Hypericum mutilum subsp. mutilum
click for image enlargement
©2015 Barry Breckling
Hypericum mutilum subsp. mutilum
click for image enlargement
©2015 Barry Breckling

More photos of Hypericum mutilum subsp. mutilum
in CalPhotos



Geographic subdivisions for Hypericum mutilum subsp. mutilum:
ScV, adjacent n SNF
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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 occurrence).






 

Data provided by the participants of the  Consortium of California Herbaria.

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All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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CCH collections by month Flowering-Fruiting Monthly Counts

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).