space - defined

erect leafless flower stalk growing directly from the ground as in a tulip

shaft: (architecture) upright consisting of the vertical part of a column
wordnet.princeton.edu/perl/webwn

In botany, scapes are flowering stems, usually leafless, rising from the crown or roots of a plant. Scapes can have a single flower or many flowers, depending on the species. Some show scales, foliaceous bracts and sometimes even branches.
en.wikipedia.org/wiki/Scape (botany)

Abbreviation for slantwise convective available potential energy.
mkwc.ifa.hawaii.edu/glossary/index.cgi

A leafless peduncle arising from ground level.
www.uky.edu/Ag/Agronomy/Weeds/glossary.htm

An inflorescence that arises from the base of the pseudobulb. A simple flower inflorescence that is topped by a solitary flower, such as in many Paphiopedilum species.
www.irishorchidsociety.org/glossary.htm

(in Hosta) the flower stem, peduncle.
hostafarm.stores.yahoo.net/glofhote.html

leafless stalk.
www.victoriacollege.edu/dept/bio/flower/key/terms/Glossary.htm

An unbranched inflorescence with one flower.
www.ocos.net/glossary.cfm

a flower-stalk rising direct from the rootstock. Sepal: a leaf of the calyx; the outer whorl of the perianth. Serrated: notched on the edge like a saw. Sessile: leaves or flowers connected with the stem without footstalks. Simple Leaf: an undivided leaf. ...
www.garden-centre.org/glossary.htm

The shaft of a column or the apophyge of a shaft are known as the 'scape'. ©2007 The Probert Encyclopaedia. Data used under license.
www.gelderandkitchen.co.uk/glossary/letter

the stem which supports the flowers, buds, and seed pods.
thsgardens.org/ths/growing/terms.html

The stem of an inflorescence, bearing one or more flowers, usually leaf-like bracts and sometimes branches.
www.tropiflora.com/glossary.htm

A leafless (or merely bracteate) flowering stem arising from a basal rosette.
forest.moscowfsl.wsu.edu/rmrs_gtr118/glossary.html

The first or basal segment of the antennae.
www.faunanet.gov.au/faunakeys/heteroptera/stinkbugs/html/glossary.htm