View source for Hypericum hypericoides

{{Treatment/ID
|accepted_name=Hypericum hypericoides
|accepted_authority=(Linnaeus) Crantz
|publications={{Treatment/Publication
|title=Inst. Rei Herb.
|place=2: 520. 1766
|year=1766
}}
|common_names=St. Andrew’s cross
|basionyms={{Treatment/ID/Basionym
|name=Ascyrum hypericoides
|authority=Linnaeus
|rank=species
|publication_title=Sp. Pl.
|publication_place=2: 788. 1753
}}
|synonyms=
|hierarchy=Hypericaceae;Hypericum;Hypericum sect. Myriandra;Hypericum hypericoides
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Hypericaceae]]</div><div class="higher-taxon"><small>genus</small>[[Hypericum]]</div><div class="higher-taxon"><small>section</small>[[Hypericum sect. Myriandra]]</div><div class="higher-taxon"><small>species</small>[[Hypericum hypericoides]]</div></div>
|volume=Volume 6
|mention_page=page 74
|treatment_page=page 87
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Subshrubs </b>or shrubs, erect or decumbent to prostrate, unbranched or branched, sometimes diffuse and mat-forming, 0.5–3 or 3–15 dm. <b>Stems</b>: internodes 2-winged. <b>Leaf</b> blades oblanceolate or narrowly oblong or elliptic to linear, 7–25 × 1–8.5 mm, base not articulated, usually cuneate, sometimes rounded, with glandlike auricles, margins subrecurved, apex rounded to obtuse, midrib with 1–2 pairs of branches. <b>Inflorescences</b> narrowly cylindric to pyramidal, 1–12-flowered from 1–4 nodes, sometimes with branches from to 10 proximal nodes, or branching more elaborate and pseudodichotomous; pedicels erect in fruit, bracteoles distal. <b>Flowers</b> 10–20 mm diam.; sepals persistent, enclosing capsule, 4, unequal, outer ovate-suborbiculate to narrowly elliptic, 5–12.5 × 2–13 mm, apex subapiculate to obtuse, inner lanceolate, 1–4 × 2 mm, apex acute; petals 4, bright to pale yellow, obovate to narrowly oblong-elliptic, 6–12 mm; stamens persistent, 40–50; ovary 2-merous. <b>Capsules</b> narrowly compressed-ovoid to cylindric-ellipsoid, 5–9 × 2–4 mm. <b>Seeds</b> not carinate, 0.6–0.8 mm; testa finely linear-reticulate to linear-foveolate.</span><!--

-->{{Treatment/Body
|distribution=Ala.;Ark.;D.C.;Del.;Fla.;Ga.;Ill.;Ind.;Kans.;Ky.;La.;Mass.;Md.;Miss.;Mo.;N.C.;N.J.;N.Y.;Ohio;Okla.;Pa.;S.C.;Tenn.;Tex.;Va.;W.Va.;Mexico;West Indies (Bahamas;Greater Antilles);Bermuda;Central America (Guatemala;Honduras).
|discussion=<p>Subspecies 3 (2 in the flora).</p><!--
--><p><i>Hypericum hypericoides</i> can be distinguished from <i>H. crux-andreae</i> by the two-merous ovary, narrower leaves, smaller flowers, and more richly-branched stems. It is variable in leaf and sepal shape and size; three subspecies can be recognized.</p><!--
--><p>The erect bushy form (<i></i>subsp.<i> hypericoides</i>) is most widespread and has given rise to a northern diffuse form (<i></i>subsp.<i> multicaule</i>) in the United States and a prostrate form (subsp. prostratum N. Robson) in Hispaniola.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Plants erect, usually unbranched from base and freely branched well above ground level; leaf blades usually narrowly elliptic to narrowly oblong, broadest near middle.
|[[Hypericum hypericoides subsp. hypericoides|Hypericum hypericoides subsp. hypericoides]]
|-id=key-0-1
|1
|Plants decumbent to prostrate, branching from base; leaf blades usually oblanceolate, broadest beyond middle.
|[[Hypericum hypericoides subsp. multicaule|Hypericum hypericoides subsp. multicaule]]
|}
</div></div><!--

-->{{#Taxon:
name=Hypericum hypericoides
|authority=(Linnaeus) Crantz
|rank=species
|parent rank=section
|synonyms=
|basionyms=Ascyrum hypericoides
|family=Hypericaceae
|distribution=Ala.;Ark.;D.C.;Del.;Fla.;Ga.;Ill.;Ind.;Kans.;Ky.;La.;Mass.;Md.;Miss.;Mo.;N.C.;N.J.;N.Y.;Ohio;Okla.;Pa.;S.C.;Tenn.;Tex.;Va.;W.Va.;Mexico;West Indies (Bahamas;Greater Antilles);Bermuda;Central America (Guatemala;Honduras).
|reference=None
|publication title=Inst. Rei Herb.
|publication year=1766
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V6/V6_144.xml
|genus=Hypericum
|section=Hypericum sect. Myriandra
|species=Hypericum hypericoides
}}<!--

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[[Category:Treatment]]
[[Category:Hypericum sect. Myriandra]]
[[Category:Revised Since Print]]