Common Name: GERANIUM FAMILY Habit: Annual, perennial herb, or +- woody, generally glandular-hairy. Leaf: simple to compound, basal and cauline; cauline alternate or opposite, stipules 2, +- on stem. Inflorescence: cyme or pseudo-umbel or 1--2-flowered. Flower: bisexual [unisexual], radial or +- bilateral; sepals 5, free, overlapping in bud; petals generally 5, free, generally with nectar glands at base; stamens generally 5,10[15]; staminodes scale-like or 0; ovary generally 5-lobed, upper part elongating into beak in fruit, chambers 5, placentas axile, style 1, stigmas 5, free, persistent in fruit. Fruit: septicidal [loculicidal], mericarps 5, dry, generally 1-seeded, each persistent on 1 of 5 linear segments of beak that separate from central column by curving or coiling upward. Genera In Family: 6 genera, 709 species: temperate, +- tropics. Some cultivated for ornament, perfume oils. eFlora Treatment Author: Carlos Aedo, except as noted Scientific Editor: Thomas J. Rosatti.
Common Name: CRANESBILL, GERANIUM Habit: Annual, perennial herb, often +- glandular, especially above. Stem: generally 1--4 mm wide in lower 1/2. Leaf: palmately lobed to divided, +- hairy; segments generally palmately lobed and/or toothed; upper alternate or opposite; blade generally round in outline, base generally cordate. Inflorescence: (1)2-flowered. Flower: radial (+- bilateral); sepals +- awned to mucronate; stamens 10, outer 5 opposite petals (lacking anthers in G. pusillum), inner 5 alternate petals, nectary glands 5, alternate petals. Fruit: mericarp generally ovoid, dehiscent, 1-seeded; basal callus generally present, often with long bristles. Etymology: (Greek: crane, from fruit beak) Note:Geranium yeoi Aedo & Muñoz Garm., native to Atlantic island of Madeira, with petals (14.9)16.2--19.3(20.7) mm and stamen filaments (8.7)9.6--11.3(12.8) mm -- longer than in similar G. robertianum -- documented in NCo of Del Norte Co. (Zika 2009 Madroño 56:130). eFlora Treatment Author: Carlos Aedo Reference: [Aedo 2001 Anales Jard Bot Madrid 59:3--65; Aedo et al. 1998 Ann Missouri Bot Gard 85:594--630] Unabridged Reference: [Aedo 2000--2001 Anales Jard Bot Madrid 58:39--82, 59:3--65; Aedo et al. 1998 Ann Missouri Bot Gard 85:594--630]
Geranium dissectum L.
NATURALIZED Habit: Annual. Stem: ascending to erect, 0.7--7 dm; hairs rough, spreading to reflexed. Leaf: blade 2.5--5.4 cm wide, divided 0.75--0.95 to base, segments 5--7, rhombic. Flower: pedicel 6--13 mm; sepals 4.2--7.1 mm, smooth, short-awned; petals 2.9--5.8 mm, +- notched, rose-purple. Fruit: mericarp 2.3--2.9 mm, smooth, minutely bristly, base with prong, callus 0; beak 11.1--13.5 mm, narrow tip 1.6--2.7 mm; stigmas 0.6--1 mm. Seed: deeply pitted. Chromosomes: 2n=22. Ecology: Open, disturbed sites; Elevation: < 1300 m. Bioregional Distribution: CA-FP; Distribution Outside California: to eastern North America; native to Europe, northern Africa, western Asia; alien in some Caribbean islands, South America, New Zealand. Flowering Time: Mar--Jul Jepson eFlora Author: Carlos Aedo Reference: [Aedo 2001 Anales Jard Bot Madrid 59:3--65; Aedo et al. 1998 Ann Missouri Bot Gard 85:594--630] Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) View the CDFA Pest Rating page for Geranium dissectum Weed listed by Cal-IPC Previous taxon: Geranium core-core Next taxon: Geranium lucidum
Botanical illustration including Geranium dissectum
Citation for this treatment: Carlos Aedo 2022, Geranium dissectum, in Jepson Flora Project (eds.) Jepson eFlora, Revision 11, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=26715, accessed on April 15, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 15, 2024.
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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).
Data provided by the participants of the
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