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Vascular Plants of California
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Lagunaria patersonia
NORFOLK ISLAND HIBISCUS, COW ITCH TREE


Higher Taxonomy
Family: MalvaceaeView DescriptionDichotomous Key
Common Name: MALLOW FAMILY
Habit: Annual to tree; generally with stellate hairs, often with bristles or peltate scales; juice generally mucilage-like; bark fibrous. Leaf: generally cauline, alternate, petioled, simple [palmate-compound], generally palmate-lobed and/or veined, generally toothed, evergreen or not; stipules persistent or not. Inflorescence: head, spike, raceme, or panicle, in panicle or not (a compound panicle), or flowers >= 1 in leaf axils, or flowers generally 1 opposite a leaf or on a spur; bracts leaf-like or not; bractlets 0 or on flowering stalks, often closely subtending calyx, generally in involucel. Flower: generally bisexual, radial; sepals 5, generally fused at base, abutting in bud, larger in fruit or not, nectaries as tufts of glandular hairs at base; petals (0)5, free from each other but generally fused at base to, falling with filament tube, clawed or not; stamens 5--many, filaments fused for most of length into tube around style, staminodes 5, alternate stamens, or generally 0; pistil 1, ovary superior, stalked or generally not, chambers generally >= 5, styles or style branches, stigmas generally 1 or 1--2 × chamber number. Fruit: loculicidal capsule, [berry], or 5--many, disk- or wedge-shaped segments (= mericarps).
Genera In Family: 266 genera, 4025 species: worldwide, especially warm regions; some cultivated (e.g., Abelmoschus okra; Alcea hollyhock; Gossypium cotton; Hibiscus hibiscus). Note: Recently treated to include Bombacaceae, Sterculiaceae, Tiliaceae. Mature fruit needed for identification; "outer edges" are surfaces between sides and back (abaxial surface) of segment. "Flower stalk" used instead of "pedicel," "peduncle," especially where both needed (i.e., when flowers both 1 in leaf axils and otherwise).
eFlora Treatment Author: Steven R. Hill, except as noted
Scientific Editor: Steven R. Hill, Thomas J. Rosatti.
Genus: LagunariaView Description 



Species In Genus: 1 sp.: tropics, subtropics, eastern Australia, Norfolk Island, Lord Howe Island. Etymology: (A. de Laguna, Spanish botanist, physician to Pope Julius III) Note: Cult widely as ornamental, rarely escaped; pinnate-veined leaves notable in family; sterile material may be hard to place.
Reference: Craven et al. 2006 Blumea 51:345--353
Unabridged Reference: Harden, ed 1990--1993 Flora of New South Wales; Craven et al. 2006 Blumea 51:345--353
Lagunaria patersonia (Andrews) G. Don
NATURALIZED
Habit: Shrub to small tree 2--10(15) m, evergreen. Stem: bark smooth, gray; twigs stellate-hairy. Leaf: petiole +- 1 cm; blade 5--10 cm, ovate, entire, pinnately veined, blunt, +- thick, leathery, olive-green, densely felty-stellate-hairy abaxially. Inflorescence: flowers generally 1 in leaf axils; flowering stalks stout; involucel lobes 3--5, generally ovate, enclosing flower bud, generally deciduous. Flower: 3.5--8 cm diam; sepals fused, lobes short; petals showy, reflexed, waxy, pink to rose-pink, fading white; anthers throughout filament tube; stigma club-shaped at top, lobes 5, radiating. Fruit: capsule, loculicidal, +- 4 cm, 2 cm diam before opening, filled with irritant hairs; chambers 5, walls firm, persistent, brown, fuzzy-hairy. Seed: reniform, smooth, orange to red when fresh.
Ecology: Coastal riparian forest; Elevation: < 10 m. Bioregional Distribution: SCo; Distribution Outside California: tropics, subtropics, eastern Australia, Norfolk Island, Lord Howe Island. Flowering Time: Jun--Aug Note: Producing seed and naturalized recently, only along Santa Margarita River (Hill 2009); salt tolerant.
Jepson eFlora Author: Steven R. Hill
Reference: Craven et al. 2006 Blumea 51:345--353
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Citation for this treatment: Steven R. Hill 2012, Lagunaria patersonia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=85962, accessed on October 20, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on October 20, 2019.

No expert verified images found for Lagunaria patersonia.



Geographic subdivisions for Lagunaria patersonia:
SCo
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map of distribution 1
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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.