【水塔花属】
Billbergia pyramidalis
条纹水塔花
水塔花属（学名：Billbergia）是凤梨科下的一个属，为无茎草本植物。该属共有约60种，分布于热带美洲。
水塔花属植物需要充足的阳光，但过强的阳光会造成叶色变黄，甚至造成日晒病，所以阳光太强时需要遮荫。生长适温大约摄氏20到28度，超过30度会使开花减少。冬天进入休眠期后，温度低于10至15度时会造成花期后延，高于20度也会影响来年生长。
== 种 ==
# Billbergia acreana H. Luther - Acre
# Billbergia alfonsi-joannis Reitz - from Espírito Santo to Santa Catarina
#Billbergia amandae W.Weber - Brazil, but probably extinct
#Billbergia ambigua (L.B.Sm. & Read) Betancur & N.R.Salinas - Antioquia
# Billbergia amoena (Loddiges) Lindley - Brazil
# Billbergia brachysiphon L.B. Smith - Brazil, Colombia, Ecuador
# Billbergia bradeana L.B. Smith - Espírito Santo
# Billbergia brasiliensis L.B. Smith - Rio de Janeiro
# Billbergia buchholtzii Mez  - Brazil, but probably extinct
# Billbergia cardenasii L.B. Smith - Bolivia
# Billbergia castelensis E. Pereira - Espírito Santo
# Billbergia chlorantha L.B. Smith - Espírito Santo
# Billbergia × claudioi Leme  - Brazil
# Billbergia cylindrostachya Mez - Rio de Janeiro
# Billbergia dasilvae Leme - Rondônia
# Billbergia decora Poeppig & Endlicher - Peru, Bolivia, Brazil
# Billbergia distachya (Vellozo) Mez - southern Brazil
#Billbergia domingosmartinsis E.Gross  - Espírito Santo
# Billbergia elegans Martius ex Schultes f. - Espírito Santo, Minas Gerais
# Billbergia eloiseae L.B. Smith & R.W. Read - Colombia
# Billbergia euphemiae E. Morren - southeastern Brazil
# Billbergia formosa Ule - Peru
# Billbergia horrida Regel - southeastern Brazil
# Billbergia incarnata (Ruiz & Pavón) Schultes f. - Peru
# Billbergia iridifolia (Nees & Martius) Lindley - southeastern Brazil
# Billbergia issingiana T. Krömer & E. Gross - Bolivia
# Billbergia jandebrabanderi R. Vásquez & Ibisch - Bolivia
# Billbergia kautskyana E. Pereira - Espírito Santo
# Billbergia kuhlmannii L.B. Smith - Brazil, Bolivia
# Billbergia laxiflora L.B. Smith - Espírito Santo
# Billbergia leptopoda L.B. Smith - Bahia, Espírito Santo, Minas Gerais
# Billbergia lietzei E. Morren - Espírito Santo
# Billbergia lymanii E. Pereira & Leme  - southeastern Brazil
# Billbergia macracantha E. Pereira - Rio de Janeiro
# Billbergia macrocalyx Hooker  - Bahia, Minas Gerais
# Billbergia macrolepis L.B. Smith - Costa Rica, Panama, Colombia, Ecuador, Venezuela, Guyana
# Billbergia magnifica Mez - Brazil, Paraguay
# Billbergia manarae Steyermark - Venezuela
# Billbergia meyeri Mez - Brazil, Bolivia
# Billbergia microlepis L.B. Smith - Bolivia
# Billbergia minarum L.B. Smith - Espírito Santo, Minas Gerais
# Billbergia morelii Brongniart - eastern Brazil
# Billbergia nana E. Pereira - Bahia, Espírito Santo
# 垂花水塔花 Billbergia nutans H. Wendland ex Regel：见于巴西、阿根廷、乌拉圭及巴拉圭。
# Billbergia oxysepala Mez - Acre, Ecuador
# Billbergia pallidiflora Liebmann - Mexico and Central America from Sinaloa to Nicaragua
# Billbergia pohliana Mez - Minas Gerais
# Billbergia porteana Brongniart ex Beer - Brazil, Paraguay
# 红笔凤梨 Billbergia pyramidalis (Sims) Lindley：巴西、委内瑞拉、法属圭亚那、小安的列斯群岛及古巴；亦已在毛里求斯归化。红笔凤梨
# Billbergia reichardtii Wawra - Espírito Santo, Minas Gerais
# Billbergia robert-readii E. Gross & Rauh - Peru
# Billbergia rosea hortus ex Beer - Trinidad, Venezuela
# Billbergia rubicunda Mez - Suriname
# Billbergia rupestris L.B. Smith - Colombia, Acre
# Billbergia sanderiana E. Morren  - southeastern Brazil
# Billbergia seidelii L.B. Smith & Reitz - Espírito Santo, Rio de Janeiro
# Billbergia stenopetala Harms - Ecuador, Peru
# Billbergia tessmannii Harms - Peru
# Billbergia tweedieana Baker - southeastern Brazil
# Billbergia velascana M. Cardenas - Bolivia
# Billbergia violacea Beer - Guianas, Brazil
# Billbergia viridiflora H. Wendland - Belize, Guatemala, Tabasco
# 条纹水塔花 Billbergia vittata Brongniart：见于巴西东部
# Billbergia zebrina (Herbert) Lindley - Brazil, Argentina, Uruguay, Paraguay
== 参考文献 ==