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involucral

American  
[in-vuh-look-ruhl] / ˌɪn vəˈluk rəl /

adjective

  1. Botany. of, relating to, or being an involucre.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Ascending, with numerous offshoots; stem-leaves semi-vertical, obliquely spreading, roundish, acutely 2–4-toothed, those of the shoots closely imbricate, premorsely 2–4-denticulate; involucral leaves two, 3-toothed; perianth oblong.—In similar localities.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

H. aurantìacum, L. Low, long-hirsute, above hispid and glandular, the involucral hairs dark; leaves all near the base of the simple peduncle; heads clustered; flowers deep orange to flame-color.—Roadsides and fields; N. Eng. to N. Y.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

Very minute; stems slender, loosely branching; leaves ovate, falcate-decurved, sinuate-complicate at base; monœcious; involucral leaves bifid, the divisions entire; perianth on a very short lateral branch, pyriform-clavate, acutely 5-angled, the margin echinate-muriculate.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

Branched, creeping or ascending; leaves subimbricate, obliquely spreading, round-obovate, entire or denticulate, the dorsal margin reflexed; perianth much exceeding the involucral leaves, oblong, dilated at the truncate or ciliate apex.—In rocky rivulets; common.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

Corymbosely much branched; heads small, sessile, in little clusters crowded in flat-topped corymbs; the closely appressed involucral scales somewhat glutinous; receptacle fimbrillate; rays 6–20, short, more numerous than the disk-flowers; leaves narrow, entire, sessile.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

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