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Hylotelephium

Hylotelephium
Family: Crassulaceae
Hylotelephium image
Paul Rothrock
  • FNA
  • Resources
Reid V. Moran in Flora of North America (vol. 8)
Herbs, perennial (dying back in winter, base persisting as annual addition to rootstock), not viviparous, 2-9 dm, glabrous, (from sympodial rootstock with thickened or tuberous roots). Stems [mostly] erect or ascending, little-branched proximal to cyme, succulent. Leaves persistent, cauline, alternate, opposite [or whorled], sessile or short-petiolate, not connate basally; petiole to 5 mm; blade [mostly] broad, ovate to obovate, oblanceolate, elliptic, or elliptic-oblong, or spatulate, laminar, 2-11 cm, herbaceous, base not spurred, margins entire or dentate or serrate; veins not conspicuous. Inflorescences terminal corymbose cymes, often paniculate. Pedicels present. Flowers erect, 5-merous; sepals connate basally, all alike; petals ascending or spreading, distinct, white or greenish to pinkish or purple [red]; calyx and corolla not circumscissile in fruit; nectaries quadrate to oblong [spatulate]; stamens 2 times as many as sepals or absent; filaments adnate to corolla base; pistils erect, distinct; ovary base attenuate, sometimes sharply narrowed, tapering to slender styles; styles shorter than ovary. Fruits erect. Seeds ellipsoid, with narrow, parallel grooves. x = 12.

Hylotelephium has usually been treated as a section or subgenus of the polymorphic and, as now understood, polyphyletic genus Sedum. From Sedum as redefined by H. ´t Hart (1995) these species differ in their distinct and basally attenuate pistils; in general, they differ further in having tall, leafy annual floral stems from an underground tuberous base, very broad and thin leaves, corymbose cymes, and stems dying back in winter to a tuberous base (H. Ohba 1977).

The vascular structure of flowers of this group were found by M. W. Quimby (1939) to be more primitive than in Sedum, having six distinct whorls of vascular traces from stele to appendages. In the distinctive Hylotelephium anacampseros Linnaeus of southern Europe, H. ´t Hart (1985) found only four whorls of traces and found evidence that this pattern derived from that of Hylotelephium and was independent of patterns in Sedum.

Species within inventory project: Arizona Flora
Hylotelephium angustum
Media
not available
Map not
Available
Hylotelephium cauticola
Media resource of Hylotelephium cauticola
Map not
Available
Hylotelephium cyaneum
Media resource of Hylotelephium cyaneum
Map not
Available
Hylotelephium erythrostictum
Media resource of Hylotelephium erythrostictum
Map not
Available
Hylotelephium maximum
Media resource of Hylotelephium maximum
Map not
Available
Hylotelephium mingjinianum
Media
not available
Map not
Available
Hylotelephium pluricaule
Media
not available
Map not
Available
Hylotelephium populifolium
Media resource of Hylotelephium populifolium
Map not
Available
Hylotelephium sieboldii
Media resource of Hylotelephium sieboldii
Map not
Available
Hylotelephium sordidum
Media
not available
Map not
Available
Hylotelephium spectabile
Media resource of Hylotelephium spectabile
Map not
Available
Hylotelephium telephioides
Media resource of Hylotelephium telephioides
Map not
Available
Hylotelephium telephium
Media resource of Hylotelephium telephium
Map not
Available
Hylotelephium verticillatum
Media resource of Hylotelephium verticillatum
Map not
Available
Hylotelephium viviparum
Media resource of Hylotelephium viviparum
Map not
Available
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This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].

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