Difference between revisions of "Sedum laxum"
in H. G. A. Engler et al., Nat. Pflanzenfam. ed. 2, 18a: 451. 1930,.
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{{Treatment/ID | {{Treatment/ID | ||
|accepted_name=Sedum laxum | |accepted_name=Sedum laxum | ||
− | |accepted_authority=(Britton) A. Berger | + | |accepted_authority=(Britton) A. Berger |
|publications={{Treatment/Publication | |publications={{Treatment/Publication | ||
|title=in H. G. A. Engler et al., Nat. Pflanzenfam. ed. | |title=in H. G. A. Engler et al., Nat. Pflanzenfam. ed. | ||
|place=2, 18a: 451. 1930, | |place=2, 18a: 451. 1930, | ||
}} | }} | ||
− | |basionyms={{Treatment/ID/ | + | |special_status={{Treatment/ID/Special_status |
+ | |code=E | ||
+ | |label=Endemic | ||
+ | }} | ||
+ | |basionyms={{Treatment/ID/Basionym | ||
|name=Gormania laxa | |name=Gormania laxa | ||
|authority=Britton | |authority=Britton | ||
+ | |rank=species | ||
+ | |publication_title=in N. L. Britton and J. N. Rose, New N. Amer. Crassul., | ||
+ | |publication_place=29. 1903 | ||
}} | }} | ||
|synonyms= | |synonyms= | ||
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}}<!-- | }}<!-- | ||
− | --><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, cespitose or not, glabrous. <b>Stems</b> root-stocks, ascending, much-branched, bearing rosettes. <b>Leaves</b> alternate, erect to spreading, sessile; blade green, glaucous or not, not pruinose, oblanceolate, spatulate, or obovate, subterete or somewhat flattened, 10–50 × (4.5–)6–33 mm, base not spurred, not scarious, apex truncate to rounded or obtuse, emarginate or barely notched. <b>Flowering</b> shoots erect or decumbent, simple or branched, 4–30(–40) cm; leaf blades oblanceolate, spatulate, obovate, or suborbiculate, base not spurred; offsets not formed. <b>Inflorescences</b> elongate, paniculate cymes, 12–80-flowered, monochasially 3+-branched; branches not recurved, 2-forked; bracts similar to leaves, smaller. <b>Pedicels</b> 0.6–6.3 mm. <b>Flowers</b> 5-merous; sepals erect, (closely appressed to corolla tube), slightly connate basally, pale green, ovate or lanceolate, equal, (2–)2.6–5.1 × 2 mm, apex acute or subacute, (rarely obtuse in var. flavidum); petals basally erect, divergent in distal 1/2, connate basally, pink, pinkish white, or white to yellowish white, lanceolate-oblong, oblanceolate-oblong, or elliptic-oblong, not carinate, 4–11 mm, apex obtuse, shortly mucronate or aristate; filaments white, greenish white, or pink; anthers red, reddish purple, red-brown, or yellow; nectar scales white, yellow, or pink, reniform or transversely oblong. <b>Carpels</b> erect in fruit, distinct, brown.</span><!-- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, cespitose or not, glabrous. <b>Stems</b> root-stocks, ascending, much-branched, bearing rosettes. <b>Leaves</b> alternate, erect to spreading, sessile; blade green, glaucous or not, not pruinose, oblanceolate, spatulate, or obovate, subterete or somewhat flattened, 10–50 × (4.5–)6–33 mm, base not spurred, not scarious, apex truncate to rounded or obtuse, emarginate or barely notched. <b>Flowering</b> shoots erect or decumbent, simple or branched, 4–30(–40) cm; leaf blades oblanceolate, spatulate, obovate, or suborbiculate, base not spurred; offsets not formed. <b>Inflorescences</b> elongate, paniculate cymes, 12–80-flowered, monochasially 3+-branched; branches not recurved, 2-forked; bracts similar to leaves, smaller. <b>Pedicels</b> 0.6–6.3 mm. <b>Flowers</b> 5-merous; sepals erect, (closely appressed to corolla tube), slightly connate basally, pale green, ovate or lanceolate, equal, (2–)2.6–5.1 × 2 mm, apex acute or subacute, (rarely obtuse in <i></i>var.<i> flavidum</i>); petals basally erect, divergent in distal 1/2, connate basally, pink, pinkish white, or white to yellowish white, lanceolate-oblong, oblanceolate-oblong, or elliptic-oblong, not carinate, 4–11 mm, apex obtuse, shortly mucronate or aristate; filaments white, greenish white, or pink; anthers red, reddish purple, red-brown, or yellow; nectar scales white, yellow, or pink, reniform or transversely oblong. <b>Carpels</b> erect in fruit, distinct, brown.</span><!-- |
-->{{Treatment/Body | -->{{Treatment/Body | ||
− | |distribution= | + | |distribution=Calif.;Oreg. |
|discussion=<p>Varieties 5 (5 in the flora).</p><!-- | |discussion=<p>Varieties 5 (5 in the flora).</p><!-- | ||
− | --><p>Sedum laxum is unusual in forming offsets in axils of rosette leaves rather than on a rootstock or creeping stem.</p> | + | --><p><i>Sedum laxum</i> is unusual in forming offsets in axils of rosette leaves rather than on a rootstock or creeping stem.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Sedum laxum | name=Sedum laxum | ||
− | + | |authority=(Britton) A. Berger | |
− | |authority=(Britton) A. Berger | ||
|rank=species | |rank=species | ||
|parent rank=genus | |parent rank=genus | ||
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|basionyms=Gormania laxa | |basionyms=Gormania laxa | ||
|family=Crassulaceae | |family=Crassulaceae | ||
− | |distribution= | + | |distribution=Calif.;Oreg. |
|reference=None | |reference=None | ||
|publication title=in H. G. A. Engler et al., Nat. Pflanzenfam. ed. | |publication title=in H. G. A. Engler et al., Nat. Pflanzenfam. ed. | ||
|publication year= | |publication year= | ||
− | |special status= | + | |special status=Endemic |
− | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V8/V8_449.xml |
|genus=Sedum | |genus=Sedum | ||
|species=Sedum laxum | |species=Sedum laxum | ||
}}<!-- | }}<!-- | ||
− | -->[[Category:Treatment]][[Category:Sedum]] | + | --> |
+ | |||
+ | [[Category:Treatment]] | ||
+ | [[Category:Sedum]] | ||
+ | [[Category:Revised Since Print]] |
Latest revision as of 18:17, 6 November 2020
Herbs, perennial, cespitose or not, glabrous. Stems root-stocks, ascending, much-branched, bearing rosettes. Leaves alternate, erect to spreading, sessile; blade green, glaucous or not, not pruinose, oblanceolate, spatulate, or obovate, subterete or somewhat flattened, 10–50 × (4.5–)6–33 mm, base not spurred, not scarious, apex truncate to rounded or obtuse, emarginate or barely notched. Flowering shoots erect or decumbent, simple or branched, 4–30(–40) cm; leaf blades oblanceolate, spatulate, obovate, or suborbiculate, base not spurred; offsets not formed. Inflorescences elongate, paniculate cymes, 12–80-flowered, monochasially 3+-branched; branches not recurved, 2-forked; bracts similar to leaves, smaller. Pedicels 0.6–6.3 mm. Flowers 5-merous; sepals erect, (closely appressed to corolla tube), slightly connate basally, pale green, ovate or lanceolate, equal, (2–)2.6–5.1 × 2 mm, apex acute or subacute, (rarely obtuse in var. flavidum); petals basally erect, divergent in distal 1/2, connate basally, pink, pinkish white, or white to yellowish white, lanceolate-oblong, oblanceolate-oblong, or elliptic-oblong, not carinate, 4–11 mm, apex obtuse, shortly mucronate or aristate; filaments white, greenish white, or pink; anthers red, reddish purple, red-brown, or yellow; nectar scales white, yellow, or pink, reniform or transversely oblong. Carpels erect in fruit, distinct, brown.
Distribution
Calif., Oreg.
Discussion
Varieties 5 (5 in the flora).
Sedum laxum is unusual in forming offsets in axils of rosette leaves rather than on a rootstock or creeping stem.
Selected References
None.
Lower Taxa
Key
1 | Flowering shoot leaf bases clasping stems. | Sedum laxum var. heckneri |
1 | Flowering shoot leaf bases not clasping stems | > 2 |
2 | Petals pale yellow or white with pink mid- veins; sepal apices obtuse. | Sedum laxum var. flavidum |
2 | Petals pink or white; sepal apices acute | > 3 |
3 | Flowering shoot leaf blades suborbiculate. | Sedum laxum var. eastwoodiae |
3 | Flowering shoot leaf blades spatulate to oblanceolate | > 4 |
4 | Leaf blades 9-17 mm wide | Sedum laxum var. laxum |
4 | Leaf blades 17-33 mm wide. | Sedum laxum var. latifolium |