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.
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 hookerianum Wight & Arn.
WAIF Habit: Evergreen shrub, 3--21 dm. Stem: erect to spreading, many-branched. Leaf: petiole 1--4 mm; blade 25--75 mm, ovate to broadly lanceolate, acute to rounded, glands in short lines or dots. Inflorescence: flowers 1--5 per stem. Flower: sepals erect, 5--10 mm, subequal, obovate to elliptic, rounded; petals 15--30 mm, obovate to elliptic, obtuse to rounded, yellow; stamens 60--80 per cluster, anthers yellow; ovary 5--7 mm, ovoid; styles 2--4 mm. Fruit: 9--17 mm, ovoid. Seed: 0.7--1 mm, dark red-brown. Ecology: Shaded forest; Elevation: 30 m. Bioregional Distribution: NCo (Mendocino Co.); Distribution Outside California: native to southern Asia. Flowering Time: Jul Note: Ornamental, occasionally escaping from cultivation. 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 concinnum Next taxon: Hypericum mutilum subsp. mutilum
Citation for this treatment: Robert E. Preston & Jennifer Talbot 2012, Hypericum hookerianum, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=89017, accessed on April 19, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 19, 2024.
No expert verified images found for Hypericum hookerianum.
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(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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