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| ** Glossary ** | ||||
| Home | Documents | Glossary | ||
|
Spreading* |
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| Spreading:
With
reference
to
branches
or
other
structures,
leaning
outwards
from
the
point
of
attachment
on
an
axis.
(Compare
with
ascending
and
erect.)
Widely Spreading: Similar to the above term, except approaching (but not quite) perpendicular to the axis. |
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| Figure
A. Spreading
inflorescence
branches
of smooth goldenrod (Solidago gigantea). |
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| Figure
B. Spreading
floral
bracts
of
old
field
aster. (Symphyotrichum pilosum) |
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| * Authors of various botanical texts use the term "spreading", and other related terms, in various ways. Some define these terms in a glossary, while others don't. In order to achieve consistency and a measure of precision, Haines (2011) sets exact numerical range for this term to 45 to 90 degrees from vertical. However, that creates a dilemma for users. What if the angle is 87 degrees? No one is going to be that precise, and plants don't read books. |
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| Images and text copyright Arieh Tal, 2017-2022. All rights reserved. |
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