Tolmiea Torr. & A.Gray

Youth on age (en), Tolmie (fr)

Genus

Angiosperms > Saxifragales > Saxifragaceae

Characteristics

Herbs, rhizomatous, not stoloniferous; rhizomes sometimes branched, scaly; caudex not cormlike, with persistent leaf bases. Flowering stems erect, leafy, 2.5-70 cm, sparsely to moderately, short to long stipitate-glandular. Leaves in basal rosette and cauline; cauline leaves reduced distally, vegetative shoots sometimes from axillary buds of cauline leaves; stipules present; petiole stipitate-glandular, (adventitious buds usually produced at apices of petioles of rosette and cauline leaves, sometimes forming plantlets); blade ovate, shallowly 5-9-lobed, base cordate, ultimate margins strongly to obscurely, irregularly serrate to nearly dentate, each tooth ending in glandular hair, apex acute (rarely obtuse), surfaces subglabrous to stipitate-glandular; venation palmate. Inflorescences racemes, from axillary buds in rosette, 10-150-flowered, bracteate. ( Pedicels with subtending bracts.) Flowers bilaterally symmetric; hypanthium adnate to ovary only at base for less than 1 mm (ovary appearing superior), free from ovary for 4-5 mm, greenish, ± split to base, (cylindric-funnelform); sepals (persistent), 5, green with variable development of red-purple stripes, (unequal, slightly gibbous at base, stipitate-glandular, 3 dorsal sepals ovate-to elliptic-triangular, apex obtuse to rounded-mucronate, 2 ventral-lateral sepals narrowly ovate-triangular to oblong-triangular, apex acute to acuminate); petals 4, (recurved), greenish to brown-purple, (± linear); nectariferous tissue proximal to stamens; stamens 3, (inserted at apex of hypanthium opposite dorsal sepals, slightly exserted); filaments filiform; ovary superior, 1-locular, (oblong, turbinate, apex 2-cleft, stipitate-glandular), carpels connate proximally; placentation parietal; styles 2; stigmas 2. Capsules 2-beaked, (ovoid, turbinate). Seeds brown to nearly black, subglobose, distinctly muricate. x = 7.
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Growth form herb
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Sexuality hermaphrodite
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Root system rhizome
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Hardiness (USDA) 4-10

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Cultivation

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Images

Tolmiea unspecified picture

Distribution

Tolmiea world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:332022-2
WFO ID wfo-4000038529
COL ID 7XHM
BDTFX ID 87321
INPN ID 607004
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Tolmiea

Lower taxons

Tolmiea diplomenziesii Tolmiea menziesii