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Why native Missouri orchids are a 'problem child' for conservation efforts

Rachel Helmich, coordinator for micropropagation at the Missouri Botanic Garden, sterilizes lab utensils in a research lab on Wednesday, Feb. 7, 2024, at the Missouri Botanic Garden in St. Louis' Shaw neighborhood. The lab is working to preserve orchids native to Missouri.
Eric Lee
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漏 2024 外网天堂
Rachel Helmich, micropropagation coordinator at the Missouri Botanical Garden, sterilizes lab utensils in her research lab on Wednesday at the garden in St. Louis' Shaw neighborhood.

Rachel Helmich鈥檚 lab at the Missouri Botanical Garden is not exactly typical. It鈥檚 carpeted, there鈥檚 no sink, and the counters have Instant Pots on them.

鈥淭hey actually work great,鈥 said Helmich, micropropagation coordinator. 鈥淚 can sterilize everything in there. They've never broken down.鈥

While visitors take in the international, tropical drama of the annual orchid show downstairs, Helmich spends her time upstairs trying to get native Missouri orchids to grow. Lighted shelves in this lab are full of what look like plastic takeout containers, each with small green shoots of plants growing in a jelly-like substance.

Seedlings of Calopogon oklahomensis are sealed in a container in a research lab on Wednesday at the Missouri Botanic Garden in St. Louis' Shaw neighborhood.
Eric Lee
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漏 2024 外网天堂
Seedlings of Calopogon oklahomensis are sealed in a container with agar, the jelly-like substance, on Wednesday at the Missouri Botanical Garden in St. Louis' Shaw neighborhood.

Some of the plants here might be familiar, like . Others, like the , are threatened.

Climate change, habitat loss and pollinator loss are just some of the factors that are threatening orchids around the world. Almost half of all known orchids are considered critically endangered, endangered or vulnerable.

Orchids are an especially interesting conservation challenge, Helmich said, because they are finicky. Their tiny seeds look like dust, and they rely on symbiotic relationships with specific fungi, sometimes switching fungus types as they grow. But those same particularities also make them important for broader conservation efforts.

鈥淭hey act as a canary in the coal mine, because they are so sensitive to changes within their environment,鈥 Helmich said. 鈥淚f you've noticed that, 鈥極h, I haven't seen this in years,鈥 that's telling you something has changed in their soil or something has changed with their pollinator.鈥

The micropropagation lab where Helmich works is an example of increased conservation efforts at the garden in recent years. The garden also has a seed bank with more than 2,400 dormant seeds, but orchids don鈥檛 store well. That鈥檚 why the tissue cultures in this lab are important, said Rebecca Sucher, senior manager of living collections.

Rebecca Sucher, senior manager of living collections, in the orchid range on Wednesday.
Eric Lee
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漏 2024 外网天堂
Rebecca Sucher, senior manager of living collections at the Missouri Botanical Garden, poses for a portrait in the orchid range on Feb. 7 at the Missouri Botanical Garden in St. Louis' Shaw neighborhood.

鈥淭his is really the last place that we want to take a species because this means it's a problem child, basically,鈥 Sucher said. 鈥淏ecause this is a lot of work.鈥

Walking through the ornate flowers in the orchid show, Helmich said her work with native orchids has given her a new appreciation for beauty. She hopes more people might begin to see plants in a similar light.

鈥淭he more that we start throwing in the different styles, the more that we can start opening people's minds up,鈥 Helmich said. 鈥淭here's so many different types of beauty. No beauty is wrong.鈥

Helmich hopes that one day a Missouri native orchid will be featured in the annual show.

鈥淚 would love to see it,鈥 she said. 鈥淚 think it can happen. It'll just take planning work and a team of people getting together to make it happen.鈥

Kate Grumke covers the environment, climate and agriculture for 漏 2024 外网天堂 and Harvest Public Media.